Submission #676483

#	Time	Username	Problem	Language	Result	Execution time	Memory
676483		penguin133	Palindromic FizzBuzz (NOI19_palindrome)	C++17	100 / 100	20 ms	1876 KiB

palindrome

#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";
		else cout << i << '\n';
	}
}

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