题解 | #求1+2+3+...+n#
求1+2+3+...+n
https://www.nowcoder.com/practice/7a0da8fc483247ff8800059e12d7caf1
class Solution {
public:
Solution()
{
count++;
sum += count;
}
int Sum_Solution(int n) {
Solution arr[n];
return sum;
}
static int count;
static int sum;
};
int Solution::count = -1;
int Solution::sum = 0;
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