题目如下：
| Oil Deposits |
The GeoSurvComp geologic survey company is responsible for detectingunderground oil deposits. GeoSurvComp works with one large rectangularregion of land at a time, and createsa grid that divides the land into numerous square plots. It then analyzeseach plot separately,using sensing equipment to determine whether or not the plot contains oil.
A plot containingoil is called a pocket. If two pockets are adjacent, then they are part ofthe same oil deposit. Oildeposits can be quite large and may contain numerous pockets. Your job is todetermine how many different oil deposits are contained in a grid.
and
.Followingthis are
m lines of n characterseach (not counting the end-of-line characters). Each character corresponds toone plot, and iseither `*‘, representing the absence of oil, or `@‘, representing an oil pocket.
1 1 * 3 5 *@*@* **@** *@*@* 1 8 @@****@* 5 5 ****@ *@@*@ *@**@ @@@*@ @@**@ 0 0
0 1 2 2
求连块的个数，图的深度优先搜索。
AC的代码如下：
UVA Oil Deposits,布布扣,bubuko.com
原文：http://blog.csdn.net/u013840081/article/details/32764687