Submission #1105406

#	Time	Username	Problem	Language	Result	Execution time	Memory
1105406		salmon	Exhibition (JOI19_ho_t2)	C++14	100 / 100	53 ms	5052 KiB

joi2019_ho_t2

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

int N,M;
vector<pair<int,int>> p;
int h1,h2;
vector<int> v;

int main(){

    scanf(" %d",&N);
    scanf(" %d",&M);

    for(int i = 0; i < N; i++){
        scanf(" %d",&h1);
        scanf(" %d",&h2);

        p.push_back({h2,h1});
    }

    for(int i = 0; i < M; i++){
        scanf(" %d",&h1);

        v.push_back(h1);
    }

    sort(p.begin(),p.end(), greater<pair<int,int>>());
    sort(v.begin(),v.end(),greater<int>());

    int num = 0;

    for(int i = 0; i < N; i++){
        if(p[i].second <= v[num]){
            num++;
        }
        if(num == M) break;
    }

    printf("%d",num);
}

Compilation message (stderr)

joi2019_ho_t2.cpp: In function 'int main()':
joi2019_ho_t2.cpp:11:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   11 |     scanf(" %d",&N);
      |     ~~~~~^~~~~~~~~~
joi2019_ho_t2.cpp:12:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   12 |     scanf(" %d",&M);
      |     ~~~~~^~~~~~~~~~
joi2019_ho_t2.cpp:15:14: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   15 |         scanf(" %d",&h1);
      |         ~~~~~^~~~~~~~~~~
joi2019_ho_t2.cpp:16:14: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   16 |         scanf(" %d",&h2);
      |         ~~~~~^~~~~~~~~~~
joi2019_ho_t2.cpp:22:14: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   22 |         scanf(" %d",&h1);
      |         ~~~~~^~~~~~~~~~~

• Subtask 1: 10 / 10
• Subtask 2: 40 / 40
• Subtask 3: 50 / 50