c++
求1+2+3+...+n
http://www.nowcoder.com/questionTerminal/7a0da8fc483247ff8800059e12d7caf1
class Solution {
public:
int Sum_Solution(int n) {
int sum = n;
sum && (sum+=Sum_Solution(n-1));
return sum;
}
};求1+2+3+...+n
http://www.nowcoder.com/questionTerminal/7a0da8fc483247ff8800059e12d7caf1
class Solution {
public:
int Sum_Solution(int n) {
int sum = n;
sum && (sum+=Sum_Solution(n-1));
return sum;
}
};相关推荐
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