陈锐锋 • 1个月前
#include<bits/stdc++.h>
using namespace std;
int n, m, a, b, c, d, e, f;
int main() {
while (cin >> n >> m) {
int sum = 0;
if (n == 0 && m == 0) break;
a = n / 100;
b = n / 10 % 10;
c = n % 10;
d = m / 100;
e = m / 10 % 10;
f = m % 10;
if (a + d >= 10) {
sum++;
}
if (b + e >= 10) {
sum++;
}
if (c + f >= 10) {
sum++;
}
cout << sum << endl;
}
return 0;
}
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