Submission #24362751

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Source Code Expand

#include <bits/stdc++.h>
#include <cstdio>
 
using namespace std;
 
#define pb push_back
#define mp make_pair
#define gc getchar_unlocked
#define F first
#define S second
#define endl '\n'
 
#define PI 3.14159265358979323846
#define N 212345
#define MOD 1000000007

void printVector(vector<int> arr) {
  for (int a=0;a<arr.size();a++) {
    if (a>0) {
      cout << " ";
    }
    cout << arr[a];
  }
  cout<<endl;
}

void solve() {
  int n;
  cin>>n;

  vector <int> arr1, arr2, arr3;
  int x;
  for (int a=0;a<n;a++) {
    cin>>x;
    arr1.pb(x);
  }
  for (int a=0;a<n;a++) {
    cin>>x;
    arr2.pb(x);
  }
  for (int a=0;a<n;a++) {
    cin>>x;
    arr3.pb(x);
  }
  sort(arr1.begin(), arr1.end());
  sort(arr2.begin(), arr2.end());
  sort(arr3.begin(), arr3.end());

  int ptr1 = 0, ptr2 = 0, ptr3 = 0;
  int ans = 0;
  while (ptr1 < n && ptr2 < n && ptr3 < n) {
    if (arr1[ptr1] >= arr2[ptr2]) {
      ptr2++;
    } else if (arr1[ptr1] >= arr3[ptr3]) {
      ptr3++;
    } else if (arr2[ptr2] >= arr3[ptr3]) {
      ptr3++;
    } else {
      ans++;
      ptr1++, ptr2++, ptr3++;
    }
  }
  cout<<ans<<endl;
}

int main(){
  ios::sync_with_stdio(false);
  cin.tie(0);

  int tt = 1;
  // cin >> tt;
  while(tt--) {
    solve();
  }
  //cout<<(clock()-st)/CLOCKS_PER_SEC<<endl;
  return 0;
}

Submission Info

Compile Error

./Main.cpp: In function ‘void printVector(std::vector<int>)’:
./Main.cpp:18:17: warning: comparison of integer expressions of different signedness: ‘int’ and ‘std::vector<int>::size_type’ {aka ‘long unsigned int’} [-Wsign-compare]
   18 |   for (int a=0;a<arr.size();a++) {
      |                ~^~~~~~~~~~~

Judge Result