1: /*
2: Author:Justinzhang
3: email:uestczhangchao@gmail.com
4: time:2012-8-30 22:17:23
5: desc：fork problem, from www.qshpan.com
6: */
7:
8: #include <stdio.h>
9: #include <stdlib.h>
10: int sum;
11: int main()
12: {
13: int i = 0;
14: sum = 0;
15: fork();
16: for(i=0; i<5; i++)
17: {
18: printf("%d\n",i);
19: fflush(stdout);
20: sum += i;
21: }
22: printf("sum = %d\n", sum);
23:
24: exit(0);
25: }