0202. Sea Battle
Имя входного файла: | sea.in |
Имя выходного файла: | sea.out |
Ограничение по времени: | 250 ms |
Ограничение по памяти: | 32 megabytes |
You are given locations of ships on a 10*10 field in "Sea battle" game. According to game rules, field must contains the following ships:
- one four-decks;
- two three-decks;
- three double-decks;
- four single-decks.
Ships should be straight, oriented horizontally or vertically and can not touch each other. You are to write a program, that checks whether the set of play fields matchs described rules.
Input file
First line of the input contains single integer number N (1 ≤ N ≤ 10) – quantity of play fields. N descriptions of play fields follows. Each description contains 10 lines with 10 characters in each. Symbol `0' means that the corresponding cell is free, and `*' means that corresponding cell is covered by a ship. Fields descriptions are separated by blank lines.
Output file
Output file must consist of N lines. Each line should contain the word `YES' if the corresponding field is correct and `NO' otherwise.
Examples:
sea.in | sea.out |
---|---|
1 ****000000 0000000000 ***00***00 0000000000 00000000** 000**00000 00000000** 000*000000 00000*00*0 0*00000000 | YES |
Источник: Petrozavodsk Summer 2003. Saratov SU Contest, Wednesday, August 27
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