80 lines
1.3 KiB
C++
80 lines
1.3 KiB
C++
#include <iostream>
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#include <algorithm>
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#include <cstdio>
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#include <climits>
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#include <vector>
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using namespace std;
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const int N = 100;
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int n, m;
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int boss[N + 2];
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int cur[N + 2];
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int occupy[N + 2][N + 2];
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int need[N + 2][N + 2];
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int mark[N + 2];
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bool check(int x)
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{
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if (mark[x])return false;
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int i;
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for (i = 1; i <= n; i++)
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{
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if (need[x][i] > cur[i])return false;
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}
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return true;
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}
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void callBack(int x)
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{
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int i;
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for (i = 1; i <= n; i++)
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{
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cur[i] += occupy[x][i];
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need[x][i] = 0;
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}
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mark[x] = 1;
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}
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int main ()
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{
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int i, j, tmp;
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while (scanf("%d%d", &n, &m) != EOF)
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{
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memset(mark, 0, sizeof(mark));
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for (i = 1; i <= n; i++)
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{
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scanf("%d", &boss[i]);
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cur[i] = boss[i];
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}
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for (i = 1; i <= m; i++)
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for (j = 1; j <= n; j++)
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{
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scanf("%d", &need[i][j]);
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need[i][j] < 0 ? 0 : need[i][j];
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}
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for (i = 1; i <= m; i++)
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for (j = 1; j <= n; j++)
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{
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scanf("%d", &tmp);
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need[i][j] -= tmp;
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occupy[i][j] = tmp;
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cur[j] -= tmp;
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}
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int flag;
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while (1)
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{
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flag = 0;
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for (i = 1; i <= m; i++)
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{
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if (check(i))
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{
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callBack(i);
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flag = 1;
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}
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}
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if (!flag)break;
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}
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for (i = 1; i <= n; i++)
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if (cur[i] != boss[i])break;
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if (i > n)printf("Yes\n");
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else
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printf("No\n");
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}
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}
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