题解 | #求1+2+3+...+n#
求1+2+3+...+n
https://www.nowcoder.com/practice/7a0da8fc483247ff8800059e12d7caf1
function Sum_Solution(n)
{
return (n + 1) * n / 2;
}
module.exports = {
Sum_Solution : Sum_Solution
};
人生苦短,及时行乐。求1+2+3+...+n
https://www.nowcoder.com/practice/7a0da8fc483247ff8800059e12d7caf1
function Sum_Solution(n)
{
return (n + 1) * n / 2;
}
module.exports = {
Sum_Solution : Sum_Solution
};
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