08-图8 How Long Does It Take（c语言)

题目：How Long Does It Take

Given the relations of all the activities of a project, you are supposed to find the earliest completion time of the project.

Input Specification:Each input file contains one test case. Each case starts with a line containing two positive integers N (≤100), the number of activity check points (hence it is assumed that the check points are numbered from 0 to N−1), and M, the number of activities. Then M lines follow, each gives the description of an activity. For the i-th activity, three non-negative numbers are given: S[i], E[i], and L[i], where S[i] is the index of the starting check point, E[i] of the ending check point, and L[i] the lasting time of the activity. The numbers in a line are separated by a space.

Output Specification:

For each test case, if the scheduling is possible, print in a line its earliest completion time; or simply output "Impossible".

9 12
0 1 6
0 2 4
0 3 5
1 4 1
2 4 1
3 5 2
5 4 0
4 6 9
4 7 7
5 7 4
6 8 2
7 8 4

Sample Output 1:

18

Sample Input 2:

4 5
0 1 1
0 2 2
2 1 3
1 3 4
3 2 5

Sample Output 2:

Impossible

  题目就是陈越姥姥所讲的那个题（8.2讲），那题意就不用多说了，直接上码。

#include
#include
#include
#define max 105
#define INF 10000
int t[max][max];//邻接矩阵
typedef struct node edge;//记录指向该点的边有多少
struct node{
	int ne;
};
edge t2[max];
int n,w;//点的个数和边的个数
void play()//初始化
{
	for(int i=0;isum[i]){
					sum[i]=t[v][i]+sum[v];
				}
				}
					
			}
	}
	if(cnt)//如果成环
	{
		printf("Impossible"); 
	return ;
	}	
	else {
        for(int i=0;i

第一次写csdn嘛，代码可能写的不好，兄弟们见谅了。欢迎评论区大家一起讨论。

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原文地址: http://outofmemory.cn/langs/1295811.html