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CF GYM 10499J Healthy Recipes（DP）
source link: https://arminli.com/cf-gym-10499j/
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Armin's Blog
CF GYM 10499J Healthy Recipes（DP）
December 03, 2015
题意观察样例与提示即可。
挺水的 DP 题，DP 刷的比较少。。
#include<iostream>
#include<algorithm>
#include<string>
#include<sstream>
#include<cstdio>
#include<cstring>
#include<vector>
#include<cmath>
using namespace std;
long long a[105], dp[10005];
int main(){
int T;
scanf("%d", &T);
while(T--){
memset(dp, 0, sizeof(dp));
int n, m, k;
dp[0] =1;
scanf("%d %d %d", &n, &m, &k);
for(int i = 1; i <= n; i++){
scanf("%I64d", &a[i]);
}
for(int i = 1; i <= n; i++){
for(int j = m; j >= a[i]; j--){
dp[j] += dp[j-a[i]];
}
if(dp[m] >= k)
break;
}
if(dp[m] >= k) cout << "ENOUGH" << endl;
else cout << dp[m] << endl;
}
return 0;
}
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