Submission #68133106

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Source Code Expand

#include<bits/stdc++.h>
#define ll long long
#define ld long double

using namespace std;

int main(){

  int n, m, x; scanf("%d%d", &n, &m);
  x = n;
  int a[n], b[m];
  map<int,int> mp;
  for(int i = 0; i < n ; i++){
    scanf("%d", &a[i]);
    mp[a[i]]++;
  }
  for(int i = 0; i < m ; i++){
    scanf("%d", &b[i]);
  }
  for(int i = 0; i < m ; i++){
    if(mp[b[i]] > 0 && x){
      mp[b[i]]--;
      x--;
    }
  }
  if(x <= 0){
    printf(" ");
  }
  else{
    for(auto [a,b] : mp){
      for(int i = 0; i < b; i++){
        printf("%d ", a);
      }
    }
  }
  
 return 0;
}

Submission Info

Compile Error

Main.cpp: In function ‘int main()’:
Main.cpp:9:21: warning: ignoring return value of ‘int scanf(const char*, ...)’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
    9 |   int n, m, x; scanf("%d%d", &n, &m);
      |                ~~~~~^~~~~~~~~~~~~~~~
Main.cpp:14:10: warning: ignoring return value of ‘int scanf(const char*, ...)’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
   14 |     scanf("%d", &a[i]);
      |     ~~~~~^~~~~~~~~~~~~
Main.cpp:18:10: warning: ignoring return value of ‘int scanf(const char*, ...)’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
   18 |     scanf("%d", &b[i]);
      |     ~~~~~^~~~~~~~~~~~~

Judge Result