Submission #615944

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Source Code Expand

#include <iostream>
#include <stdio.h>
#include <stdlib.h>
#include <math.h>
#include <string>
#include <vector>
#include <algorithm>
#define rep(i,n) for(ll (i)=0;(i)<(ll)(n);++(i))
#define pb(x) push_back(x)
#define debug(x) cout << #x << " = " << x << endl;
using namespace std;

int main(void){
  int n;
  cin >> n;
  int cnt = 0;
  for(int i = 25;i<n;i +=25){
      cnt++;
    }
  cout << cnt << endl;
  return 0;
}

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