Submission #32593324

---

Source Code Expand

#include<bits/stdc++.h>
typedef long long LL;
#define rep(i, a, b) for(int i = (a); i <= (b); i ++)
#define per(i, a, b) for(int i = (a); i >= (b); i --)
#define Ede(i, u) for(int i = head[u]; i; i = e[i].nxt)
using namespace std;

LL rev(LL x) {
	LL y = 0;
	while(x) y = y * 10 + x % 10, x /= 10;
	return y;
}

int main() {
	LL n, k; scanf("%lld %lld", &n, &k);
	if(k % 10 != 0) {
		set<LL> ans;
		LL a = k, b = rev(k);
		if(a <= b) {LL x = a; while(x <= n) ans.insert(x), x *= 10;}
		if(a <= b) {LL x = b; while(x <= n) ans.insert(x), x *= 10;}
		printf("%d\n", (int) ans.size());
	}
	else printf("%d\n", (k <= n));
	return 0;
}

Submission Info

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:15:16: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
   15 |  LL n, k; scanf("%lld %lld", &n, &k);
      |           ~~~~~^~~~~~~~~~~~~~~~~~~~~

Judge Result