题解 | #牛牛的digit#
牛牛的digit
https://www.nowcoder.com/practice/21b49f1f495f4280b8a96c415deaa3c4
#include <iostream> #include <cmath> #include <string> using namespace std; long long digit(long long a, long long b) { string ar = to_string(a); for (int i = ar.length() - b - 1; i >= 0; i--) { ar[i] = '0'; } long long num = stoll(ar); return num; } int main() { long long x, i; cin >> x >> i; cout << digit(x, i); }