Problem Statement |
| | In soccer, all the major national leagues are conducted in the following way:
A league consists of several teams. Over the course of a year, each team must play exactly two matches against each of the other teams - one at its own stadium and one at the opponent's stadium. When a team plays at its own stadium, it is called the "home team" and its opponent is called the "away team". Each match ends in one of three possible results: a home team victory, a draw, or an away team victory. Each time a team wins, it is awarded 3 points. When there's a draw, both teams are awarded 1 point. No points are awarded for a loss. The overall ranking of the teams is based on the total number of points received by each team.
You are given a String[] matches. The j-th character of the i-th element of matches denotes the result of the match between team i and team j at team i's stadium. 'W' represents a home team victory, 'D' represents a draw, and 'L' represents an away team victory. All characters on the main diagonal of matches will be '-' because a team never plays against itself. Return a int[] where the i-th element is the total number of points received by the i-th team.
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Definition |
| | | Class: | SoccerLeagues | | Method: | points | | Parameters: | String[] | | Returns: | int[] | | Method signature: | int[] points(String[] matches) | | (be sure your method is public) |
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Constraints |
| - | matches will contain exactly n elements, where n is between 2 and 50, inclusive. |
| - | Each element of matches will contain exactly n characters. |
| - | matches will contain only '-','W','D' and 'L' characters. |
| - | For all i, the i-th character of the i-th element of matches will be '-', and no other characters will be '-'. |
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Examples |
| 0) | |
| | | Returns: {6, 6, 6 } | | There are 3 teams in the league, and in all matches the home team has won.
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| 1) | |
| | | Returns: {5, 2, 8 } | | This time, the first team has 1 win and 2 draws, the second one has 2 draws and the third has 2 wins and 2 draws.
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| 2) | |
| | {"-DWWD",
"L-WLL",
"DD-WD",
"DDL-L",
"DDLL-"} |
| Returns: {14, 7, 12, 8, 10 } | |
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| 3) | |
| | {"-LWWLWDLDWWWWWWDDWDW",
"D-WWLDDWDWDLWDDWLWDD",
"LL-DLDWDLDLDWWWLWDDW",
"LDD-LLLDLWLWWWWDWDWL",
"LWWW-DWDLWDWDWWWDWDW",
"DLLWD-WWLLDDDLWWDWWW",
"WWLWDL-LLDWWWWWDWWLW",
"LLLLLDW-LDLWDDLLLDWL",
"DWWWWDDD-DWWWWDWWWDW",
"WWWWLLLWL-LWWWWWLWWW",
"DWWWWWWWLW-WDWWWWWWW",
"DDDLLLDWWWL-DDWDWLDD",
"LWLWLDLLLDLW-DDDWWDD",
"LLWWLWDDLWLWL-WWWDLL",
"WWWWLLDDDWLWDD-WWWLW",
"DLDLLLWWLLLWWLW-DWLL",
"DLWWWLDLWWDWWDWL-WWD",
"LLDDLLWLLWLWLDLWW-WW",
"LLWLLLWWLWLWWDWWLD-W",
"LLWDLWDWDWLLWWDDWWL-"} |
| Returns:
{72, 62, 41, 41, 83, 63, 53, 35, 86, 50, 90, 32, 34, 41, 45, 36, 51, 32, 51, 45 } | | This is the actual table for the latest season's Barclaycard Premiership with the teams sorted alphabetically.
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