Submission #6502571

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Source Code Expand

#include <cstdio>
#include <cmath>
using namespace std;

int n, s;

inline bool is_jz(int x, int b) {
	int sum = 0;
	while (x)
		sum += x % b, x /= b;
	return sum == s;
}

int main() {
	scanf("%d %d", &n, &s);
	if(n == s) {
		printf("1");
		return 0;
	}
	int sqr = sqrt(n);
	for (int i = 2; i <= sqr; ++i)
		if (is_jz(n, i)) {
			printf("%d", i);
			return 0;
		}
	for (int i = 1; i <= sqr; ++i)
		if ((n - s) % i == 0) {
			printf("%d", (n - s) / i + 1);
			return 0;
		}
	printf("-1");
	return 0;
}

Submission Info

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:15:24: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d %d", &n, &s);
                        ^

Judge Result