Submission #115495

#	Time	Username	Problem	Language	Result	Execution time	Memory
115495		thebes	Sails (IOI07_sails)	C++14	40 / 100	1072 ms	3692 KiB

sails

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

typedef long long ll;
priority_queue<ll> q;
ll N, i, nxt=1, ans; vector<ll> tmp;
pair<ll,ll> arr[100005];

int main(){
    for(scanf("%lld",&N),i=1;i<=N;i++)
        scanf("%lld%lld",&arr[i].first,&arr[i].second);
    sort(arr+1,arr+N+1,[](pair<ll,ll>i,pair<ll,ll>j){return i.first<j.first;});
    for(i=1;i<=N;i++){
        while(nxt<=arr[i].first) q.push(0), nxt++;
        while(arr[i].second--){
            ans += -q.top(); tmp.push_back(q.top()-1); q.pop();
        }
        for(auto v : tmp) q.push(v);
        tmp.clear();
    }
    printf("%lld\n",ans);
    return 0;
}

Compilation message (stderr)

sails.cpp: In function 'int main()':
sails.cpp:11:25: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     for(scanf("%lld",&N),i=1;i<=N;i++)
         ~~~~~~~~~~~~~~~~^~~~
sails.cpp:12:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%lld%lld",&arr[i].first,&arr[i].second);
         ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

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