Submission #73060219

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Source Code Expand

#include <bits/stdc++.h>
#define int long long
#define x first
#define y second
using namespace std;
int n, k, ans;
int js(int x) {
	int ret = 0;
	while(x) ret += x % 10, x /= 10;
	return ret;
}
signed main() {
	ios::sync_with_stdio(0);
	cin.tie(0), cout.tie(0);
	cin >> n >> k;
	for(int i = 1; i <= n; i ++) {
		ans += k == js(i);
	}
	cout << ans << '\n';
	return 0;
}

Submission Info

Judge Result