题解 | 大水题
大水题
https://www.nowcoder.com/practice/435aa556e093463891f6da7d322140a4
#include <stdio.h>
int count(int x){
int sum = 0;
while(x>0){
sum += x%10;
x/=10;
}
if(sum>10){
int count2 = count(sum);
return count2;
}
return sum;
}
int main() {
int n = 0;
scanf("%d",&n);
int sum = 0;
int count1 = count(n);
printf("%d",count1);
return 0;
}
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