diff --git a/.ACM-Templates/Josephus_problem.cpp b/.ACM-Templates/Josephus_problem.cpp
new file mode 100644
index 0000000..26157ae
--- /dev/null
+++ b/.ACM-Templates/Josephus_problem.cpp
@@ -0,0 +1,12 @@
+///约瑟夫问题,n个人,查m个数  
+int JosephusProblem_Solution4(int n, int m)  
+{  
+    if(n < 1 || m < 1)  
+        return -1;  
+  
+    vector<int> f(n+1,0);  
+    for(unsigned i = 2; i <= n; i++)  
+        f[i] = (f[i-1] + m) % i;  
+  
+    return f[n];  
+}
diff --git a/.ACM-Templates/RMQ-ST-System.cpp b/.ACM-Templates/RMQ-ST-System.cpp
new file mode 100644
index 0000000..ef31d8c
--- /dev/null
+++ b/.ACM-Templates/RMQ-ST-System.cpp
@@ -0,0 +1,57 @@
+#include <cstdio>
+#include <cstring>
+#include <cmath>
+#include <algorithm>
+#include <functional>
+#define INF 0x3f3f3f3f
+using namespace std;
+const int maxn = 10010;
+struct node
+{
+    int lt,rt,v;
+};
+node tree[maxn<<2];
+
+/** ========== Conditional =========== */
+using ValueType = int;
+
+inline ValueType algo_delegate(ValueType a,ValueType b)
+{
+    return min(a,b);
+}
+/****************************************/
+
+void build(int lt,int rt,int v)
+{
+    tree[v].lt = lt;
+    tree[v].rt = rt;
+    if(lt == rt)
+    {
+        scanf("%d",&tree[v].v);
+        return;
+    }
+    int mid = (lt + rt)>>1;
+    build(lt,mid,v<<1);
+    build(mid+1,rt,v<<1|1);
+    tree[v].v = algo_delegate(tree[v<<1].v,tree[v<<1|1].v);
+}
+void update(int p,int val,int v)
+{
+    if(tree[v].lt == tree[v].rt)
+    {
+        tree[v].v = val;
+        return;
+    }
+    if(p <= tree[v<<1].rt) update(p,val,v<<1);
+    if(p >= tree[v<<1|1].lt) update(p,val,v<<1|1);
+    tree[v].v = algo_delegate(tree[v<<1].v,tree[v<<1|1].v);
+}
+int query(int lt,int rt,int v)
+{
+    if(tree[v].lt >= lt && tree[v].rt <= rt)
+        return tree[v].v;
+    int a = INF,b = INF;
+    if(lt <= tree[v<<1].rt) a = query(lt,rt,v<<1);
+    if(rt >= tree[v<<1|1].lt) b = query(lt,rt,v<<1|1);
+    return algo_delegate(a,b);
+}
diff --git a/.Tools/Readme.md b/.Tools/Readme.md
index 4bce553..5a500b9 100644
--- a/.Tools/Readme.md
+++ b/.Tools/Readme.md
@@ -1 +1,2 @@
 #Tools
+Some tools will be included here to help setup a develop platform on a new computer.  
diff --git a/HDOJ/1698_sr_19930829.cpp b/HDOJ/1698_sr_19930829.cpp
new file mode 100644
index 0000000..b92bdc5
--- /dev/null
+++ b/HDOJ/1698_sr_19930829.cpp
@@ -0,0 +1,72 @@
+#include <iostream>
+#include <stdio.h>
+#include <algorithm>
+using namespace std;
+
+#define lson l,m,rt<<1
+#define rson m+1,r,rt<<1|1
+const int maxn=100002;
+int col[maxn<<2];//用来标记每个节点，为0则表示没有标记，否则为标记，以颜色的价值作为标记。
+int sum[maxn<<2];//求和
+
+void PushUp(int rt)//向上更新和
+{
+    sum[rt]=sum[rt<<1]+sum[rt<<1|1];
+}
+
+void PushDown(int rt,int m)//对某一个区间进行改变，如果被标记了，在查询的时候就得把改变传给子节点，因为查询的并不一定是当前区间
+{//m为区间长度
+    if(col[rt])//已经标记过，该区间被改变过
+    {
+        col[rt<<1]=col[rt<<1|1]=col[rt];//标记子节点
+        sum[rt<<1]=(m-(m>>1))*col[rt];//更新左儿子的和
+        sum[rt<<1|1]=(m>>1)*col[rt];//更新右儿子的和
+        col[rt]=0;
+    }
+}
+
+void build(int l,int r,int rt)
+{
+    col[rt]=0;//初始化为所有节点均未标记
+    sum[rt]=1;//初始值为1
+    if(l==r)
+        return;
+    int m=(l+r)>>1;
+    build(lson);
+    build(rson);
+}
+
+void update(int L,int R,int c,int l,int r,int rt)
+{
+    if(L<=l&&r<=R)
+    {
+        col[rt]=c;
+        sum[rt]=c*(r-l+1);//更新代表某个区间的节点和，该节点不一定是叶子节点
+        return ;
+    }
+    PushDown(rt,r-l+1);//向下传递
+    int m=(l+r)>>1;
+    if(L<=m)
+        update(L,R,c,lson);//更新左儿子
+    if(R>m)
+        update(L,R,c,rson);//更新右儿子
+    PushUp(rt);//向上传递更新和
+}
+int main()
+{
+    int k;cin>>k;
+    int n,c,add,a,b;
+    for(int i=1;i<=k;i++)
+    {
+        scanf("%d",&n);
+        build(1,n,1);
+        scanf("%d",&c);
+        for(int j=1;j<=c;j++)
+        {
+            scanf("%d%d%d",&a,&b,&add);
+            update(a,b,add,1,n,1);
+        }
+        printf("Case %d: The total value of the hook is %d.\n",i,sum[1]);
+    }
+    return 0;
+}
diff --git a/POJ/2566_wiking__acm.cpp b/POJ/2566_wiking__acm.cpp
new file mode 100644
index 0000000..b4e20d4
--- /dev/null
+++ b/POJ/2566_wiking__acm.cpp
@@ -0,0 +1,55 @@
+#include<cstdio>
+#include<iostream>
+#include<algorithm>
+using namespace std;
+const int maxn = 100000 + 5;
+const int INF = 2000000000;
+typedef  pair<int, int> P;
+typedef long long LL;
+
+P p[maxn];
+
+int Abs(int x){return x<0?-x:x;}
+int n;
+
+void query(int tar){
+    int s = 0,e = 1,Min = INF;
+    int ansl,ansr,ansx;
+    while(s <= n && e <= n){
+        int tem = p[e].first-p[s].first;
+        if(Abs(tem-tar) < Min){
+            Min = Abs(tem-tar);
+            ansx = tem;
+            ansl = p[s].second;
+            ansr = p[e].second;
+        }
+        if(tem > tar) s++;
+        else if(tem < tar) e++;
+        else break;
+        if(s == e) e++;
+    }
+    if(ansl > ansr) swap(ansl,ansr);
+    printf("%d %d %d\n",ansx,ansl+1,ansr);
+}
+
+int main(){
+    int m;
+    while(scanf("%d%d",&n,&m)){
+        if(n == 0 && m == 0) break;
+        p[0] = P(0,0);
+        int sum = 0;
+        for(int i = 1;i <= n;i++){
+            int tem;
+            scanf("%d",&tem);
+            sum += tem;
+            p[i] = P(sum,i);
+        }
+        sort(p,p+n+1);
+        while(m--){
+            int x;
+            scanf("%d",&x);
+            query(x);
+        }
+    }
+    return 0;
+}
diff --git a/hihoCoder/1068.cpp b/hihoCoder/1068.cpp
new file mode 100644
index 0000000..192f057
--- /dev/null
+++ b/hihoCoder/1068.cpp
@@ -0,0 +1,68 @@
+#include <cstdio>
+#include <cstdlib>
+#include <cstring>
+
+#include <algorithm>
+#include <cmath>
+using namespace std;
+
+const int MAXN = 1000005;
+
+int n,ndev;
+int a[MAXN];
+
+const int MAXDEV = 25;
+
+int minsum[MAXN][MAXDEV];
+
+void RMQ() //预处理->O(nlogn)
+{
+    for(int j = 1; j <= ndev; ++j)
+        for(int i = 1; i <= n; ++i)
+            if(i + (1 << j) - 1 <= n)
+            {
+                //maxsum[i][j] = max(maxsum[i][j - 1], maxsum[i + (1 << (j - 1))][j - 1]);
+                minsum[i][j] = min(minsum[i][j - 1], minsum[i + (1 << (j - 1))][j - 1]);
+            }
+}
+int RMQ(int i,int j)
+{
+    int k=log2( j - i + 1);
+    //return max(maxsum[i ][ k], maxsum[ j - 2 ^ k + 1][ k]);
+    return min(minsum[i ][ k], minsum[ j - (1<<k) + 1][ k]);
+}
+void Init()
+{
+    for(int i=1;i<=n;i++)
+    {
+        minsum[i][0]=a[i];
+    }
+}
+int main()
+{
+    scanf("%d",&n);
+    ndev=0;
+    int p=n;
+    if(p&1) p++;
+    while(p>1)
+    {
+        p>>=1;
+        ndev++;
+    }
+    for(int i=1;i<=n;i++)
+    {
+        scanf("%d",&a[i]);
+    }
+    Init();
+    RMQ();
+    int t;
+    scanf("%d",&t);
+    for(int i=0;i<t;i++)
+    {
+        int L,R;
+        scanf("%d %d",&L,&R);
+        int ans=RMQ(L,R);
+        printf("%d\n",ans);
+    }
+    return 0;
+}
diff --git a/hihoCoder/1068_JeromeHuang.cpp b/hihoCoder/1068_JeromeHuang.cpp
new file mode 100644
index 0000000..25a92a5
--- /dev/null
+++ b/hihoCoder/1068_JeromeHuang.cpp
@@ -0,0 +1,50 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <math.h>
+#include <fstream>
+using namespace std;
+
+
+const int N = 10e6+10;
+const int M = 30;
+int arrayData[N];
+int rmqData[N][M];
+int n,m;
+int min(int x, int y){
+    return (x <y ? x : y);
+}
+void RMQ(){
+    int i, j;
+    for (i = 0; i < n; i++){
+        rmqData[i][0] = arrayData[i];
+    }
+    for (j = 1; j <=m; j++){
+        for (i = 0; i+(1 << j)-1 <n; i++){
+            rmqData[i][j] = min(rmqData[i][j - 1], rmqData[i + (1<<(j - 1))][j - 1]);
+        }
+    }
+}
+
+int main(){
+    scanf("%d", &n);
+    int i, j;
+    for (i = 0; i < n; i++){
+        scanf("%d", &arrayData[i]);
+    }
+    m = (log(n*1.0) / log(2.0));
+
+    RMQ();
+    
+    int q;
+    scanf("%d", &q);
+    for (i = 0; i < q; i++){
+        int l, r;
+        scanf("%d%d", &l, &r);
+        l = l - 1;
+        r = r - 1;
+        int k=0;
+        while ((1 << (k + 1)) <= (r - l + 1)) k++;
+        printf("%d\n", min(rmqData[l][k], rmqData[r-(1<<k)+1][k]));
+    }
+    return 0;
+}
diff --git a/hihoCoder/1068_jhgkjhg_ugtdk77.cpp b/hihoCoder/1068_jhgkjhg_ugtdk77.cpp
new file mode 100644
index 0000000..ca9e2a2
--- /dev/null
+++ b/hihoCoder/1068_jhgkjhg_ugtdk77.cpp
@@ -0,0 +1,75 @@
+#include<set>
+#include<map>
+#include<cmath>
+#include<queue>
+#include<stack>
+#include<ctime>
+#include<string>
+#include<cstdio>
+#include<cctype>
+#include<cstring>
+#include<cstdlib>
+#include<iostream>
+#include<algorithm>
+using namespace std;
+
+typedef long long ll;
+typedef unsigned int uint;
+typedef unsigned long long ull;
+
+const int maxn = 1e6 + 5;
+const int max_pos = 20 ;
+
+struct Q{ int l,r; } quary[maxn];
+
+int N,Q;
+int weight[maxn];
+int rmq[maxn][max_pos];
+
+void init(){
+    memset(rmq,0x5f,sizeof(rmq));
+}
+
+void input(){
+    scanf("%d",&N);
+    for(int i=1;i<=N;i++) scanf("%d",&weight[i]);
+    scanf("%d",&Q);
+    for(int i=1;i<=Q;i++) scanf("%d%d",&quary[i].l,&quary[i].r);
+}
+/*
+int get_mi(int x){
+    int ret=0;
+    for(int i=1;i<=x;i*=2) ret++;
+    return ret-1;
+}
+*/
+
+void RMQ_ST(){
+    for(int i=1;i<=N;i++) rmq[i][0]=weight[i];
+    //int l=get_mi(N);
+    int l=(int)((log(N))/(log(2.0)));
+    for(int j=1;j<=l;j++){
+        for(int i=1;i+(1<<j)-1<=N;i++){
+            rmq[i][j]=min(rmq[i][j-1],rmq[i+(1<<(j-1))][j-1]);
+        }
+    }
+}
+
+void solve(){
+    RMQ_ST();
+    for(int i=1;i<=Q;i++){
+        int l=quary[i].l;
+        int r=quary[i].r;
+        //int mi=get_mi(v-u+1);
+        int mi=(int)((log(r-l+1))/(log(2.0)));
+        printf("%d\n",min(rmq[l][mi],rmq[r-(1<<mi)+1][mi]));
+    }
+}
+
+int main(){
+    init();
+    input();
+    solve();
+    return 0;
+}
+
diff --git a/hihoCoder/1070.cpp b/hihoCoder/1070.cpp
new file mode 100644
index 0000000..2de5bbb
--- /dev/null
+++ b/hihoCoder/1070.cpp
@@ -0,0 +1,74 @@
+#include <cstdio>
+#include <cstring>
+#include <cmath>
+#include <algorithm>
+#include <functional>
+#define INF 0x3f3f3f3f
+using namespace std;
+const int maxn = 10010;
+struct node
+{
+    int lt,rt,v;
+};
+node tree[maxn<<2];
+
+/** ========== Conditional =========== */
+using ValueType = int;
+
+inline ValueType algo_delegate(ValueType a,ValueType b)
+{
+    return min(a,b);
+}
+/****************************************/
+
+void build(int lt,int rt,int v)
+{
+    tree[v].lt = lt;
+    tree[v].rt = rt;
+    if(lt == rt)
+    {
+        scanf("%d",&tree[v].v);
+        return;
+    }
+    int mid = (lt + rt)>>1;
+    build(lt,mid,v<<1);
+    build(mid+1,rt,v<<1|1);
+    tree[v].v = algo_delegate(tree[v<<1].v,tree[v<<1|1].v);
+}
+void update(int p,int val,int v)
+{
+    if(tree[v].lt == tree[v].rt)
+    {
+        tree[v].v = val;
+        return;
+    }
+    if(p <= tree[v<<1].rt) update(p,val,v<<1);
+    if(p >= tree[v<<1|1].lt) update(p,val,v<<1|1);
+    tree[v].v = algo_delegate(tree[v<<1].v,tree[v<<1|1].v);
+}
+int query(int lt,int rt,int v)
+{
+    if(tree[v].lt >= lt && tree[v].rt <= rt)
+        return tree[v].v;
+    int a = INF,b = INF;
+    if(lt <= tree[v<<1].rt) a = query(lt,rt,v<<1);
+    if(rt >= tree[v<<1|1].lt) b = query(lt,rt,v<<1|1);
+    return algo_delegate(a,b);
+}
+
+int main()
+{
+    int n,m,op,u,v;
+    while(~scanf("%d",&n))
+    {
+        build(1,n,1);
+        scanf("%d",&m);
+        while(m--)
+        {
+            scanf("%d %d %d",&op,&u,&v);
+            if(op) update(u,v,1);
+            else printf("%d\n",query(u,v,1));
+        }
+    }
+    return 0;
+}
diff --git a/hihoCoder/1070_crackpotisback.cpp b/hihoCoder/1070_crackpotisback.cpp
new file mode 100644
index 0000000..34a33f0
--- /dev/null
+++ b/hihoCoder/1070_crackpotisback.cpp
@@ -0,0 +1,63 @@
+#include <iostream>
+#include <cstdio>
+#include <cstring>
+#include <cmath>
+#include <algorithm>
+#include <climits>
+#include <vector>
+#include <queue>
+#include <cstdlib>
+#include <string>
+#include <set>
+#include <stack>
+#define LL long long
+#define pii pair<int,int>
+#define INF 0x3f3f3f3f
+using namespace std;
+const int maxn = 10010;
+struct node{
+    int lt,rt,minv;
+};
+node tree[maxn<<2];
+void build(int lt,int rt,int v){
+    tree[v].lt = lt;
+    tree[v].rt = rt;
+    if(lt == rt){
+        scanf("%d",&tree[v].minv);
+        return;
+    }
+    int mid = (lt + rt)>>1;
+    build(lt,mid,v<<1);
+    build(mid+1,rt,v<<1|1);
+    tree[v].minv = min(tree[v<<1].minv,tree[v<<1|1].minv);
+}
+void update(int p,int val,int v){
+    if(tree[v].lt == tree[v].rt){
+        tree[v].minv = val;
+        return;
+    }
+    if(p <= tree[v<<1].rt) update(p,val,v<<1);
+    if(p >= tree[v<<1|1].lt) update(p,val,v<<1|1);
+    tree[v].minv = min(tree[v<<1].minv,tree[v<<1|1].minv);
+}
+int query(int lt,int rt,int v){
+    if(tree[v].lt >= lt && tree[v].rt <= rt)
+        return tree[v].minv;
+    int a = INF,b = INF;
+    if(lt <= tree[v<<1].rt) a = query(lt,rt,v<<1);
+    if(rt >= tree[v<<1|1].lt) b = query(lt,rt,v<<1|1);
+    return min(a,b);
+}
+int main() {
+    int n,m,op,u,v;
+    while(~scanf("%d",&n)){
+        build(1,n,1);
+        scanf("%d",&m);
+        while(m--){
+            scanf("%d %d %d",&op,&u,&v);
+            if(op) update(u,v,1);
+            else printf("%d\n",query(u,v,1));
+        }
+    }
+    return 0;
+}
diff --git a/hihoCoder/1077.cpp b/hihoCoder/1077.cpp
new file mode 100644
index 0000000..6e83e74
--- /dev/null
+++ b/hihoCoder/1077.cpp
@@ -0,0 +1,74 @@
+#include <cstdio>
+#include <cstring>
+#include <cmath>
+#include <algorithm>
+#include <functional>
+#define INF 0x3f3f3f3f
+using namespace std;
+const int maxn = 1000010;
+struct node
+{
+    int lt,rt,v;
+};
+node tree[maxn<<2];
+
+/** ========== Conditional =========== */
+using ValueType = int;
+
+inline ValueType algo_delegate(ValueType a,ValueType b)
+{
+    return min(a,b);
+}
+/****************************************/
+
+void build(int lt,int rt,int v)
+{
+    tree[v].lt = lt;
+    tree[v].rt = rt;
+    if(lt == rt)
+    {
+        scanf("%d",&tree[v].v);
+        return;
+    }
+    int mid = (lt + rt)>>1;
+    build(lt,mid,v<<1);
+    build(mid+1,rt,v<<1|1);
+    tree[v].v = algo_delegate(tree[v<<1].v,tree[v<<1|1].v);
+}
+void update(int p,int val,int v)
+{
+    if(tree[v].lt == tree[v].rt)
+    {
+        tree[v].v = val;
+        return;
+    }
+    if(p <= tree[v<<1].rt) update(p,val,v<<1);
+    if(p >= tree[v<<1|1].lt) update(p,val,v<<1|1);
+    tree[v].v = algo_delegate(tree[v<<1].v,tree[v<<1|1].v);
+}
+int query(int lt,int rt,int v)
+{
+    if(tree[v].lt >= lt && tree[v].rt <= rt)
+        return tree[v].v;
+    int a = INF,b = INF;
+    if(lt <= tree[v<<1].rt) a = query(lt,rt,v<<1);
+    if(rt >= tree[v<<1|1].lt) b = query(lt,rt,v<<1|1);
+    return algo_delegate(a,b);
+}
+
+int main()
+{
+    int n,m,op,u,v;
+    while(~scanf("%d",&n))
+    {
+        build(1,n,1);
+        scanf("%d",&m);
+        while(m--)
+        {
+            scanf("%d %d %d",&op,&u,&v);
+            if(op) update(u,v,1);
+            else printf("%d\n",query(u,v,1));
+        }
+    }
+    return 0;
+}
diff --git a/hihoCoder/1077_crackpotisback.cpp b/hihoCoder/1077_crackpotisback.cpp
new file mode 100644
index 0000000..988b291
--- /dev/null
+++ b/hihoCoder/1077_crackpotisback.cpp
@@ -0,0 +1,63 @@
+#include <iostream>
+#include <cstdio>
+#include <cstring>
+#include <cmath>
+#include <algorithm>
+#include <climits>
+#include <vector>
+#include <queue>
+#include <cstdlib>
+#include <string>
+#include <set>
+#include <stack>
+#define LL long long
+#define pii pair<int,int>
+#define INF 0x3f3f3f3f
+using namespace std;
+const int maxn = 1000010;
+struct node {
+    int lt,rt,minv;
+};
+node tree[maxn<<2];
+void build(int lt,int rt,int v) {
+    tree[v].lt = lt;
+    tree[v].rt = rt;
+    if(lt == rt) {
+        scanf("%d",&tree[v].minv);
+        return;
+    }
+    int mid = (lt + rt)>>1;
+    build(lt,mid,v<<1);
+    build(mid+1,rt,v<<1|1);
+    tree[v].minv = min(tree[v<<1].minv,tree[v<<1|1].minv);
+}
+void update(int p,int val,int v) {
+    if(tree[v].lt == tree[v].rt) {
+        tree[v].minv = val;
+        return;
+    }
+    if(p <= tree[v<<1].rt) update(p,val,v<<1);
+    if(p >= tree[v<<1|1].lt) update(p,val,v<<1|1);
+    tree[v].minv = min(tree[v<<1].minv,tree[v<<1|1].minv);
+}
+int query(int lt,int rt,int v) {
+    if(tree[v].lt >= lt && tree[v].rt <= rt)
+        return tree[v].minv;
+    int a = INF,b = INF;
+    if(lt <= tree[v<<1].rt) a = query(lt,rt,v<<1);
+    if(rt >= tree[v<<1|1].lt) b = query(lt,rt,v<<1|1);
+    return min(a,b);
+}
+int main() {
+    int n,q,u,v,op;
+    while(~scanf("%d",&n)) {
+        build(1,n,1);
+        scanf("%d",&q);
+        while(q--) {
+            scanf("%d %d %d",&op,&u,&v);
+            if(op) update(u,v,1);
+            else printf("%d\n",query(u,v,1));
+        }
+    }
+    return 0;
+}