Submission #1179705

#	Time	Username	Problem	Language	Result	Execution time	Memory
1179705		pythontest	Art Exhibition (JOI18_art)	C++20	100 / 100	195 ms	24424 KiB

art

#include <iostream>
#include <vector>
#include <algorithm>
#include <queue>
constexpr int N=5e5+10;
long long sum[N];
using namespace std;
int main() {
    vector<pair<long long,int>> dane;
    int n;
    scanf("%d",&n);
    for(int i=0;i<n;i++){
        long long a,b;
        scanf("%lld %lld",&a,&b);
        dane.push_back({a,b});
    }
    sort(dane.begin(),dane.end());
    for(int i=1;i<=n;i++) sum[i]=dane[i-1].second;
    for(int i=1;i<=n;i++) sum[i]+=sum[i-1];
    priority_queue<pair<long long,int>> kolejeczka;
    for(int i=0;i<n;i++) kolejeczka.push({sum[i+1]-dane[i].first,i+1});
    long long wyn=0;
    for(int i=1;i<=n;i++){
        while(kolejeczka.top().second<i){
            kolejeczka.pop();
        }
        wyn=max(kolejeczka.top().first-sum[i-1]+dane[i-1].first,wyn);
    }
    printf("%lld",wyn);
    return 0;
}

Compilation message (stderr)

art.cpp: In function 'int main()':
art.cpp:11:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   11 |     scanf("%d",&n);
      |     ~~~~~^~~~~~~~~
art.cpp:14:14: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   14 |         scanf("%lld %lld",&a,&b);
      |         ~~~~~^~~~~~~~~~~~~~~~~~~

• Subtask 1: 10 / 10
• Subtask 2: 20 / 20
• Subtask 3: 20 / 20
• Subtask 4: 50 / 50