Submission #114204

#	Time	Username	Problem	Language	Result	Execution time	Memory
114204		zubec	Sails (IOI07_sails)	C++14	50 / 100	1076 ms	1532 KiB

sails

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

vector <pair<int, int> > vec;

int n;

int kol[100100];

int main(){
    ios_base::sync_with_stdio(0);cin.tie(0);

    cin >> n;
    for (int i = 1; i <= n; i++){
        int h, k;
        cin >> h >> k;
        vec.push_back({h, k});
    }
    sort(vec.begin(), vec.end());
    int mxh = 0;
    for (int i = 0; i < vec.size(); i++){
        if (mxh < vec[i].first){
            kol[0] += vec[i].first-mxh;
            mxh = vec[i].first;
        }
        vector <pair<int, int> > vec2;
        for (int j = 0; j <= n && vec[i].second > 0; j++){
            int mn = min(kol[j], vec[i].second);
            if (mn > 0){
                vec[i].second -= mn;
                vec2.push_back({j, mn});
                kol[j] -= mn;
            }
        }
        for (int j = 0; j < vec2.size(); j++){
            kol[vec2[j].first+1] += vec2[j].second;
        }
    }
    ll ans = 0;
    for (int j = 0; j <= n; j++){
        ans += kol[j]*1ll*j*(j-1)/2;
    }
    cout << ans;

}

Compilation message (stderr)

sails.cpp: In function 'int main()':
sails.cpp:23:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for (int i = 0; i < vec.size(); i++){
                     ~~^~~~~~~~~~~~
sails.cpp:37:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
         for (int j = 0; j < vec2.size(); j++){
                         ~~^~~~~~~~~~~~~

• Subtask 1: 5 / 5
• Subtask 2: 10 / 10
• Subtask 3: 10 / 10
• Subtask 4: 5 / 5
• Subtask 5: 10 / 10
• Subtask 6: 10 / 10
• Subtask 7: 0 / 10
• Subtask 8: 0 / 10
• Subtask 9: 0 / 10
• Subtask 10: 0 / 10
• Subtask 11: 0 / 10