1244: 用while循环求1+2+3+...+n的和(07级)wk
Memory Limit:128 MB
Time Limit:1.000 S
Judge Style:Text Compare
Creator:
Submit:36
Solved:21
Description
输入一个数字n。运用while语句 求1+2+3+.....+n=?
Input
一个数字n
Output
输出1+2+3+.....+n的结果
Sample Input Copy
100
Sample Output Copy
5050