Submission #1082896

#TimeUsernameProblemLanguageResultExecution timeMemory
1082896timmyli3481Knapsack (NOI18_knapsack)C++14
73 / 100
1031 ms24912 KiB
#include <bits/stdc++.h>
// #include "stdc++.h"
using namespace std;
struct grass{
    long long v,w,c;
};
long long dp[10000001];
grass a[100001];
int main(){
    int T,m;
    cin>>T>>m;
    int cnt=0;
    for(int i=1;i<=m;i++){
        long long v,w,c;
        cin>>v>>w>>c;
        int t=1;
        while(t<=c){
            a[++cnt].v=v*t;
            a[cnt].w=w*t;
            c-=t;
            t*=2;
        }
        if(c>0){
            a[++cnt].v=v*c;
            a[cnt].w=w*c;
        }
        
    }

    for(int i=1;i<=cnt;i++){
        for(int j=T;j>=a[i].w;j--){
           dp[j]=max(dp[j],dp[j-a[i].w]+a[i].v);
        }
    }
    cout<<dp[T];
}
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