Submission #676483

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
676483	2022-12-31 03:36:38	penguin133	Palindromic FizzBuzz (NOI19_palindrome)	C++17	100 / 100	20 ms	1876 KiB

palindrome

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#include <bits/stdc++.h>
using namespace std;
#define int long long
bool f(int x){
  stack<int>s;
  int e = x, cnt = 0;
  while(e)e /= 10, cnt++;
  int a = x;
  for(int i=1;i<=cnt/2;i++){
    s.push(a%10);
    a /= 10;
  }
  int ch =1;
  int g = 0;
  if(cnt%2)g++, a /= 10;
  for(int i=cnt/2 + 1 + g;i<=cnt;i++){
    if(s.top() == a%10)s.pop();
    else{
      ch = 0;
      break;
    }
    a /= 10;
  }
  return ch;
}
main(){
  int s,e;
  cin >> s >> e;
  for(int i=s;i<=e;i++){
    if(f(i))cout << "Palindrome!\n";
 
 
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Compilation message (stderr)

palindrome.cpp:26:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   26 | main(){
      | ^~~~

• Subtask 1: 7 / 7
• Subtask 2: 11 / 11
• Subtask 3: 14 / 14
• Subtask 4: 8 / 8
• Subtask 5: 9 / 9
• Subtask 6: 20 / 20
• Subtask 7: 31 / 31