mirror of
https://github.com/Kiritow/OJ-Problems-Source.git
synced 2024-03-22 13:11:29 +08:00
68 lines
1.8 KiB
C++
68 lines
1.8 KiB
C++
#include <iostream>
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#include <cstdio>
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#include <vector>
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#include <algorithm>
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using namespace std;
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const int maxn = 20;
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int p[maxn], nervous[maxn], n, m, k, max_cnt;
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int att[110][3];
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void dfs(int cn) {
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if(max_cnt >= k) return ;
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if(cn >= k) {
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max_cnt = k; return ;
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}
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int a[3], bak[3];
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for(int v=0; v<3; v++) {
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a[0] = att[cn][v];
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a[1] = att[cn][(v+1)%3];
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a[2] = att[cn][(v+2)%3];
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bak[0] = nervous[a[0]];
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bak[1] = nervous[a[1]];
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bak[2] = nervous[a[2]];
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nervous[a[0]] -= 2;
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if(nervous[a[0]] < 1) nervous[a[0]] = 1;
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nervous[a[1]] += 2;
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nervous[a[2]] += 2;
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for(int i=0; i<n; i++) {
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if(p[i] == p[a[1]] && i != a[1]) nervous[i]++;
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if(p[i] == p[a[2]] && i != a[2]) nervous[i]++;
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}
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int flag = true;
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for(int i=0; i<n; i++) {
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if(nervous[i] > 5) {
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max_cnt = max(max_cnt, cn);
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flag = false;
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}
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}
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if(flag) dfs(cn+1);
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for(int i=0; i<n; i++) {
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if(p[i] == p[a[1]] && i != a[1]) nervous[i]--;
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if(p[i] == p[a[2]] && i != a[2]) nervous[i]--;
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}
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nervous[a[0]] = bak[0];
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nervous[a[1]] = bak[1];
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nervous[a[2]] = bak[2];
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}
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}
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int main(){
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int T;
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scanf("%d", &T);
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for(int kase=1; kase<=T; kase++) {
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scanf("%d%d%d", &n, &m, &k);
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for(int i=0; i<n; i++) {
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scanf("%d", &p[i]);
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}
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for(int i=0; i<n; i++) {
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scanf("%d", &nervous[i]);
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}
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for(int i=0; i<k; i++) {
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scanf("%d %d %d", &att[i][0], &att[i][1], &att[i][2]);
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}
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max_cnt = 0;
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printf("Case #%d: ", kase);
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dfs(0);
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printf("%d\n", max_cnt);
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}
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return 0;
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}
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