题目链接:http://acm.hdu.edu.cn/showproblem.php?pid=2660
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第一种、01-背包变形:
#include <cstdio> #include <cstring> int max(int x, int y) { return x>y?x:y; } int dp[1017][21]; int main() { int W,val[1017],wei[1017]; int n, k, t, i, j, l; while(~scanf("%d",&t)) { while(t--) { memset(dp,0,sizeof(dp)); scanf("%d %d",&n,&k); for(i = 0 ;i < n; i++) { scanf("%d %d",&val[i],&wei[i]); } scanf("%d",&W); for(i = 0; i < n; i++) { for(l = W; l >= wei[i]; l--) { for(j = 1; j <= k; j++) { dp[l][j] = max(dp[l][j],dp[l-wei[i]][j-1]+val[i]); } } } printf("%d\n",dp[W][k]); } } return 0; }
第二种、DFS:
待更新……
hdu 2660 Accepted Necklace(01-背包变形 || DFS)
原文地址:http://blog.csdn.net/u012860063/article/details/38168609