CF883B.Berland Army
普及/提高-
通过率:0%
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题目描述
There are n military men in the Berland army. Some of them have given orders to other military men by now. Given m pairs ( xi , yi ), meaning that the military man xi gave the i -th order to another military man yi .
It is time for reform! The Berland Ministry of Defence plans to introduce ranks in the Berland army. Each military man should be assigned a rank — integer number between 1 and k , inclusive. Some of them have been already assigned a rank, but the rest of them should get a rank soon.
Help the ministry to assign ranks to the rest of the army so that:
- for each of m orders it is true that the rank of a person giving the order (military man xi ) is strictly greater than the rank of a person receiving the order (military man yi );
- for each rank from 1 to k there is at least one military man with this rank.
输入格式
The first line contains three integers n , m and k ( 1<=n<=2⋅105 , 0<=m<=2⋅105 , 1<=k<=2⋅105 ) — number of military men in the Berland army, number of orders and number of ranks.
The second line contains n integers r1,r2,...,rn , where ri>0 (in this case 1<=ri<=k ) means that the i -th military man has been already assigned the rank ri ; ri=0 means the i -th military man doesn't have a rank yet.
The following m lines contain orders one per line. Each order is described with a line containing two integers xi , yi ( 1<=xi,yi<=n , xi=yi ). This line means that the i -th order was given by the military man xi to the military man yi . For each pair (x,y) of military men there could be several orders from x to y .
输出格式
Print n integers, where the i -th number is the rank of the i -th military man. If there are many solutions, print any of them.
If there is no solution, print the only number -1.
输入输出样例
输入#1
5 3 3 0 3 0 0 2 2 4 3 4 3 5
输出#1
1 3 3 2 2
输入#2
7 6 5 0 4 5 4 1 0 0 6 1 3 6 3 1 7 5 7 1 7 4
输出#2
2 4 5 4 1 3 5
输入#3
2 2 2 2 1 1 2 2 1
输出#3
-1