题解 | #数字之和#
数字之和
https://www.nowcoder.com/practice/ae759916631f4711a90c4d4d9657f4b0
#include<cstdio>
int sum(int x) {
int sum = x % 10;
while (x % 10 != x) {
x /= 10;
sum += x % 10;
}
return sum;
}
int main() {
int x;
while (scanf("%d", &x) != EOF) {
printf("%d ", sum(x));
printf("%d\n", sum(x * x));
}
return 0;
}
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