Submission #881783

#	Time	Username	Problem	Language	Result	Execution time	Memory
881783		rainboy	Palindromes (info1cup18_palindromes)	C11	100 / 100	140 ms	10068 KiB

palindromes

#include <stdio.h>

int rev(int a) {
	int b = 0;

	while (a > 0) {
		b = b * 10 + a % 10;
		a /= 10;
	}
	return b;
}

int main() {
	int n;
	long long sum;

	scanf("%d", &n);
	sum = 0;
	while (n--) {
		int a;

		scanf("%d", &a);
		if (a == rev(a))
			sum += a;
	}
	printf("%lld\n", sum);
	return 0;
}

Compilation message (stderr)

palindromes.c: In function 'main':
palindromes.c:17:2: warning: ignoring return value of 'scanf' declared with attribute 'warn_unused_result' [-Wunused-result]
   17 |  scanf("%d", &n);
      |  ^~~~~~~~~~~~~~~
palindromes.c:22:3: warning: ignoring return value of 'scanf' declared with attribute 'warn_unused_result' [-Wunused-result]
   22 |   scanf("%d", &a);
      |   ^~~~~~~~~~~~~~~

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