Submission #20570

#	Time	Username	Problem	Language	Result	Execution time	Memory
20570		G (#35)	채점 시스템 (OJUZ11_judge)	C++11	100 / 100	56 ms	1116 KiB

judge

#include<stdio.h>
int digit(long long int x) {
	if (x < 10)return 1;
	return digit(x / 10) + 1;
}
long long int powt(int x) {
	if (x == 0)return 1;
	return powt(x - 1) * 10;
}
int main() {
	int tcn;
	scanf("%d", &tcn);
	while (tcn--) {
		long long int a, b;
		scanf("%lld%lld", &a, &b);
		int ans = 0;
		while (1) {
			if (a + powt(ans + digit(a)) > b)break;
			ans++;
		}
		printf("%d\n", ans);
	}
	return 0;
}

Compilation message (stderr)

judge.cpp: In function 'int main()':
judge.cpp:12:19: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d", &tcn);
                   ^
judge.cpp:15:28: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%lld%lld", &a, &b);
                            ^

• Subtask 1: 31 / 31
• Subtask 2: 47 / 47
• Subtask 3: 22 / 22