Submission #1256384

#	Time	Username	Problem	Language	Result	Execution time	Memory
1256384		devikareddi	Knapsack (NOI18_knapsack)	C++20	37 / 100	1097 ms	66136 KiB

knapsack

#include <bits/stdc++.h>
using namespace std;
using ll = long long;

int main() {
    ios::sync_with_stdio(false);
    cin.tie(nullptr);

    ll weight_limit,n;
    cin >> weight_limit >> n;
    vector<tuple<ll,ll,ll>> item(n);
    vector<pair<ll,ll>> expanded;
    for(auto &[a,b,c]: item) cin>> a >> b >> c;
    for( auto [a,b,c]:item){
        for( ll i=0;i<c;i++){
            expanded.push_back({a,b});
        }
    }
    vector<ll>dp(weight_limit+1,0);
    for(ll i=0;i<expanded.size();i++){
        ll weight=(expanded[i].second),value=(expanded[i].first);
        for(ll j=weight_limit;j>0;j--){
            if(j>=weight)dp[j] = max(dp[j-(weight)]+value,dp[j]);
            dp[j] = max(dp[j],dp[j-1]);
        }
    }
    cout << dp[weight_limit]<<endl;
    return 0;
}

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