Submission #519640

#	Time	Username	Problem	Language	Result	Execution time	Memory
519640		sofapuden	Sails (IOI07_sails)	C++14	70 / 100	1091 ms	2012 KiB

sails

#include<bits/stdc++.h>

using namespace std;

int main()
{
    ios_base::sync_with_stdio(0);cin.tie(0);cout.tie(0);
    int n; cin >> n;
    vector<pair<int,int>> v(n);
    for(auto &x : v)cin >> x.first >> x.second;
    vector<int> S;
    S.push_back(1);
    sort(v.begin(),v.end());
    for(int i = 0; i < n; ++i){
        int z = v[i].second;
        int mx = v[i].first;
        int in = 0;
        while(z){
            int am = min(z,mx-S[in]+1);
            z-=am;
            mx = S[in]-1;
            S[in] += am;
            in++;
        }
        if(S.back() != 1)S.push_back(1);
    }
    long long ans = 0;
    for(int i = 0; i < S.size(); ++i){
        ans += 1ll * i * (S[i]-1);
    }
    cout << ans << '\n';
}

Compilation message (stderr)

sails.cpp: In function 'int main()':
sails.cpp:28:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   28 |     for(int i = 0; i < S.size(); ++i){
      |                    ~~^~~~~~~~~~

• 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: 10 / 10
• Subtask 8: 10 / 10
• Subtask 9: 0 / 10
• Subtask 10: 0 / 10
• Subtask 11: 0 / 10