Submission #595359

#	Time	Username	Problem	Language	Result	Execution time	Memory
595359		yaroslav06	Knapsack (NOI18_knapsack)	C++17	Compilation error	0 ms	0 KiB

knapsack

#include <iostream>

const int N = 2001, M = 1e5;

using namespace std;
typedef long long ll;

int s, n;
pair<int, pair<int, int>> d[M];

bool comp(pair<int, pair<int, int>> a, pair<int, pair<int, int>> b){
    return a.second.first < b.second.first;
}

int main(){
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
    int dp[N][2]{};
    int sm[N]{};
    sort(d, d + n, comp);
    cin >> s >> n;
    for(int i = 0; i < n; ++i)
        cin >> d[i].second.first >> d[i].first >> d[i].second.second;
    for(int i = 0; i < n; ++i){
        int k = d[i].second.second,
            v = d[i].second.first,
            w = d[i].first;
        if(sm[v] >= 2000) continue;
        sm[w] += min(k * 1ll * w, 2000ll);
        for(int j = 1; j <= k && j * w <= s; ++j)
            for(int t = s; t - j * w >= 0; --t)
                dp[t][1] = max(dp[t][1], dp[t - j * w][0] + j * v);
        for(int j = 0; j <= s; ++j)
            dp[j][0] = dp[j][1];
    }
    cout << dp[s][0] << '\n';
}

Compilation message (stderr)

knapsack.cpp: In function 'int main()':
knapsack.cpp:21:5: error: 'sort' was not declared in this scope; did you mean 'qsort'?
   21 |     sort(d, d + n, comp);
      |     ^~~~
      |     qsort