英语翻译While exploring his many farms,Farmer John has discovere
来源:学生作业帮 编辑:作业帮 分类:英语作业 时间:2024/08/27 12:13:16
英语翻译
While exploring his many farms,Farmer John has discovered a number of amazing wormholes.A wormhole is very peculiar because it is a one-way path that delivers you to its destination at a time that is BEFORE you entered the wormhole!Each of FJ's farms comprises N (1 ≤ N ≤ 500) fields conveniently numbered 1..N,M (1 ≤ M ≤ 2500) paths,and W (1 ≤ W ≤ 200) wormholes.
As FJ is an avid time-traveling fan,he wants to do the following:start at some field,travel through some paths and wormholes,and return to the starting field a time before his initial departure.Perhaps he will be able to meet himself :) .
To help FJ find out whether this is possible or not,he will supply you with complete maps to F (1 ≤ F ≤ 5) of his farms.No paths will take longer than 10,000 seconds to travel and no wormhole can bring FJ back in time by more than 10,000 seconds.
Input
Line 1:A single integer,F.F farm descriptions follow.
Line 1 of each farm:Three space-separated integers respectively:N,M,and W
Lines 2..M+1 of each farm:Three space-separated numbers (S,E,T) that describe,respectively:a bidirectional path between S and E that requires T seconds to traverse.Two fields might be connected by more than one path.
Lines M+2..M+W+1 of each farm:Three space-separated numbers (S,E,T) that describe,respectively:A one way path from S to E that also moves the traveler back T seconds.
Output
Lines 1..F:For each farm,output "YES" if FJ can achieve his goal,otherwise output "NO" (do not include the quotes).
Sample Input
2
3 3 1
1 2 2
1 3 4
2 3 1
3 1 3
3 2 1
1 2 3
2 3 4
3 1 8
Sample Output
NO
YES
While exploring his many farms,Farmer John has discovered a number of amazing wormholes.A wormhole is very peculiar because it is a one-way path that delivers you to its destination at a time that is BEFORE you entered the wormhole!Each of FJ's farms comprises N (1 ≤ N ≤ 500) fields conveniently numbered 1..N,M (1 ≤ M ≤ 2500) paths,and W (1 ≤ W ≤ 200) wormholes.
As FJ is an avid time-traveling fan,he wants to do the following:start at some field,travel through some paths and wormholes,and return to the starting field a time before his initial departure.Perhaps he will be able to meet himself :) .
To help FJ find out whether this is possible or not,he will supply you with complete maps to F (1 ≤ F ≤ 5) of his farms.No paths will take longer than 10,000 seconds to travel and no wormhole can bring FJ back in time by more than 10,000 seconds.
Input
Line 1:A single integer,F.F farm descriptions follow.
Line 1 of each farm:Three space-separated integers respectively:N,M,and W
Lines 2..M+1 of each farm:Three space-separated numbers (S,E,T) that describe,respectively:a bidirectional path between S and E that requires T seconds to traverse.Two fields might be connected by more than one path.
Lines M+2..M+W+1 of each farm:Three space-separated numbers (S,E,T) that describe,respectively:A one way path from S to E that also moves the traveler back T seconds.
Output
Lines 1..F:For each farm,output "YES" if FJ can achieve his goal,otherwise output "NO" (do not include the quotes).
Sample Input
2
3 3 1
1 2 2
1 3 4
2 3 1
3 1 3
3 2 1
1 2 3
2 3 4
3 1 8
Sample Output
NO
YES
问题是请根据题目所给的输出(就是那些数字,每一列或每一行代表什么数据应该从文章里找)判断输出是“YES”还是“NO”
英语翻译Farmer john and farmer bob were neighbours for many year
英语翻译A farmer has five sons .They are Ted ,Bob ,Tom ,John and
英语翻译A farmer has five sons.They are Ted,Bob,Tom,John and Bil
英语翻译john was a farmer.he liked to grow flowers in his garden
英语翻译exploring spacecsa,the chinese space agency,has develope
英语翻译Dear John,It has been quite a while since we last met.Ho
英语翻译john was watching TV while his wife was talking with a n
英语翻译Her sister has so many valuable iewels while she has no
翻译14.The farmer raises many chickens in his farm.
英语翻译farmer john is inside of an ellipsewith refelction sides
英语翻译Farmer John and Farmer Bob were neighbours.For more than
the farmer has more than 500 _h____ on his farm