Submission #1071501

#	Time	Username	Problem	Language	Result	Execution time	Memory
1071501		vjudge1	Art Exhibition (JOI18_art)	C++17	0 / 100	1 ms	2396 KiB

art

    #include<bits/stdc++.h>
    using namespace std;
    #define int long long
    #define nn "\n";
    #define pb push_back
    const int N = 1e6 + 8  , inf = 1e17 ;
    int  n , m , q , a[N], b[N];
    signed main() {
        ios_base::sync_with_stdio(0), cin.tie(0);
        cin>> n ;
        vector<pair<int,   int >> v ;
        int ok =-inf , mx1 =0 ;
        for(int i  = 1; i <= n; i++){
            cin>> a[i]>> b[i];
            mx1 = max(mx1 , b[i]);
            v.pb({a[i] , b[i]});
        }
        sort(v.begin() , v.end());
        int mx =-inf , pos =0  ;
        for(int i =0 ; i < v.size() ; i++){
            //cout << v[i].first << ' ' << v[i].second << nn
            if(v[i].second - v[i].first> mx ){
                mx = v[i].second - v[i].first;
                pos = i ;
            }
            if(mx >= 0 )break;
        }
        int S = v[pos].second  , mn = v[pos].first ;
        mx =mx1 ;
        for(int i = pos+1 ; i < v.size() ; i++){
            mx = max(mx , S + v[i].second - (v[i].first - mn) );
            S+=v[i].second;
        }
        cout << mx  ;

    }

Compilation message (stderr)

art.cpp: In function 'int main()':
art.cpp:20:26: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<std::pair<long long int, long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   20 |         for(int i =0 ; i < v.size() ; i++){
      |                        ~~^~~~~~~~~~
art.cpp:30:31: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<std::pair<long long int, long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   30 |         for(int i = pos+1 ; i < v.size() ; i++){
      |                             ~~^~~~~~~~~~
art.cpp:12:13: warning: unused variable 'ok' [-Wunused-variable]
   12 |         int ok =-inf , mx1 =0 ;
      |             ^~

• Subtask 1: 0 / 10
• Subtask 2: 0 / 20
• Subtask 3: 0 / 20
• Subtask 4: 0 / 50