Submission #905216

#	Time	Username	Problem	Language	Result	Execution time	Memory
905216		Petrix	Advertisement 2 (JOI23_ho_t2)	C++17	0 / 100	1 ms	432 KiB

Main

#include <iostream>
#include <algorithm>
#include <vector>
using namespace std;

vector<pair<int,int>> v;

int main()
{
    int n,cnt=0,i,curent=-1,a,b;
    cin>>n;
    for(i=0;i<n;i++){
        cin>>a>>b;
        v.push_back({a-b,-b+a});
    }
    sort(v.begin(),v.end());
    for(i=0;i<v.size();i++){
        if(curent<v[i].first){
            cnt++;curent=-v[i].second;
        }
    }
    cout<<cnt;
    return 0;
}

Compilation message (stderr)

Main.cpp: In function 'int main()':
Main.cpp:17:14: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   17 |     for(i=0;i<v.size();i++){
      |             ~^~~~~~~~~

• Subtask 1: 0 / 10
• Subtask 2: 0 / 23
• Subtask 3: 0 / 36
• Subtask 4: 0 / 31