Submission #978429

#	Time	Username	Problem	Language	Result	Execution time	Memory
978429		vjudge1	Knapsack (NOI18_knapsack)	C++17	0 / 100	0 ms	348 KiB

knapsack

#include<bits/stdc++.h>
#define ll long long
#define endl '\n'

using namespace std;

int main(){
    ll s, n; cin>>s>>n;
    ll v[n], w[n], k[n];
    vector<pair<ll, ll>> vp;
    for(ll i=0;i<n;i++){
        cin>>v[i]>>w[i]>>k[i];
        vp.push_back(make_pair(v[i], i));
    }
    sort(vp.begin(), vp.end(), greater<>());
    for(auto i: vp) cout<<"e "<<i.first<<" "<<i.second<<endl;
    ll we=0, sum=0;
    for(ll i=0;i<vp.size();i++){
        ll ind = vp[i].second;
        while(we+w[ind]<=s && k[ind]!=0){
            sum+=v[ind];
            we+=w[ind];
            k[ind]--;
        }
    }
    cout<<sum<<endl;

    return 0;
}

Compilation message (stderr)

knapsack.cpp: In function 'int main()':
knapsack.cpp:18:17: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<std::pair<long long int, long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   18 |     for(ll i=0;i<vp.size();i++){
      |                ~^~~~~~~~~~

• Subtask 1: 0 / 12
• Subtask 2: 0 / 17
• Subtask 3: 0 / 20
• Subtask 4: 0 / 24
• Subtask 5: 0 / 27