题目链接： http://oj.leetcode.com/problems/two-sum/
题目内容：
Given an array of integers, find two numbers such that they add up to a specific target number.
The function twoSum should return indices of the two numbers such that they add up to the target, where index1 must be less than index2. Please note that your return继续阅读 »
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1021乒乓球比赛
```c
include
int main()
{
char i,j,k;
for(i='X'; i
include
int time_elapse(int hour, int minute, int second)
{
return hour*3600+minute*60+second;
}
int main()
{
int n;
char t[9],s[9];
int a,b,c,d,e,f;
int s1,s2;
scanf("%d",&n);
for(; n>0; n--)
{
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