Submission #401220

#	Time	Username	Problem	Language	Result	Execution time	Memory
401220		victoriad	Palindromes (info1cup18_palindromes)	C++14	100 / 100	277 ms	9924 KiB

palindromes

#include <cmath>
#include <cstdio>
#include <vector>
#include <iostream>
#include <algorithm>
#include <utility>
#include <queue>
#include <map>
#include <iomanip>
#include <stack>
#include <fstream>
#include <assert.h> 
using namespace std;
 



 
int main(){
  ios::sync_with_stdio(false);
  cin.tie(NULL);
  int n,a;
  string s;
  bool p=true;
  cin>>n;
  long long int x=0;
  for(int i=0;i<n;i++){
	  cin>>a;
	  p=true;
	  s=to_string(a);
	  for(int k=0;k<s.size()/2+1;k++){
		  if(s[k]!=s[s.size()-1-k]){
			  p=false;
			  break;
		  }
	  }
	  if(p)x+=a;
  }
	cout<<x;
  return 0;
}

Compilation message (stderr)

palindromes.cpp: In function 'int main()':
palindromes.cpp:31:17: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   31 |    for(int k=0;k<s.size()/2+1;k++){
      |                ~^~~~~~~~~~~~~

• Subtask 1: 15 / 15
• Subtask 2: 20 / 20
• Subtask 3: 30 / 30
• Subtask 4: 35 / 35