题目链接:http://acm.nyist.net/JudgeOnline/problem.php?pid=49
代码:
#include<stdio.h>
#include<string.h>
#define max(a,b) a>b?a:b
int main(){
int du[230],value[230],dp[120200];
int total,num;
int i,j,k,t,n;
scanf("%d",&n);
while(n--){
memset(du,0,sizeof(du));
memset(value,0,sizeof(value));
memset(dp,0,sizeof(dp));
scanf("%d%d",&total,&num);
for(i=1;i<=num;i++)
scanf("%d %d",&value[i],&du[i]);
for(i=1;i<=num;i++){
for(j=total;j>=value[i];j--)
dp[j]=max(dp[j],dp[j-value[i]]+value[i]*du[i]);
}
printf("%d\n",dp[total]);
}
return 0;
}