Submission #1125608

#	Time	Username	Problem	Language	Result	Execution time	Memory
1125608		salmon	Advertisement 2 (JOI23_ho_t2)	C++20	100 / 100	148 ms	4580 KiB

Main

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

int N;
vector<pair<int,int>> v;
int X,E;
const int inf = 1.01e9;

int main(){


    scanf(" %d",&N);

    for(int i = 0; i < N; i++){
        scanf(" %d",&X);
        scanf(" %d",&E);

        v.push_back({X - E, -X - E});
    }

    sort(v.begin(),v.end());

    int cont = 0;
    int r = -inf * 2;

    for(int i = 0; i < N; i++){
        if(-v[i].second > r){
            cont++;
            r = -v[i].second;
        }
    }

    printf("%d",cont);
}

Compilation message (stderr)

Main.cpp: In function 'int main()':
Main.cpp:12:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   12 |     scanf(" %d",&N);
      |     ~~~~~^~~~~~~~~~
Main.cpp:15:14: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   15 |         scanf(" %d",&X);
      |         ~~~~~^~~~~~~~~~
Main.cpp:16:14: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   16 |         scanf(" %d",&E);
      |         ~~~~~^~~~~~~~~~

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