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Language: Cow Hurdles
Description Farmer John wants the cows to prepare for the county jumping competition, so Bessie and the gang are practicing jumping over hurdles. They are getting tired, though, so they want to be able to use as little energy as possible to jump over the hurdles. Obviously, it is not very difficult for a cow to jump over several very short hurdles, but one tall hurdle can be very stressful. Thus, the cows are only concerned about the height of the tallest hurdle they have to jump over. The cows' practice room has E and contains exactly one hurdle of height _{i}H (1 ≤ _{i}H ≤ 1,000,000). Cows must jump hurdles in any path they traverse._{i}The cows have B (1 ≤ _{i}A ≤ _{i}N; 1 ≤ B ≤ _{i}N), which connote that a cow has to travel from station A to station _{i}B (by traversing over one or more paths over some route). The cows want to take a path the minimizes the height of the tallest hurdle they jump over when traveling from _{i}A to _{i}B . Your job is to write a program that determines the path whose tallest hurdle is smallest and report that height._{i}Input * Line 1: Three space-separated integers: E , and _{i}H _{i}* Lines M+2..M+T+1: Line i+M+1 contains two space-separated integers that describe task i: A and _{i}B _{i}Output * Lines 1.. Sample Input 5 6 3 1 2 12 3 2 8 1 3 5 2 5 3 3 4 4 2 4 8 3 4 1 2 5 1 Sample Output 4 8 -1 Source |

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