1510 White Rectangles

White Rectangles

Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others)
Total Submission(s): 897    Accepted Submission(s): 453

Problem Description

You are given a chessboard made up of N squares by N squares with equal size. Some of the squares are colored black, and the others are colored white. Please write a program to calculate the number of rectangles which are completely made up of white squares. 

 

Input

There are multiple test cases. Each test case begins with an integer N (1 <= N <= 100), the board size. The following N lines, each with N characters, have only two valid character values:

# - (sharp) representing a black square;
. - (point) representing a white square.

Process to the end of file.

 

Output

For each test case in the input, your program must output the number of white rectangles, as shown in the sample output.

 

Sample Input

2.#..4..#.##.#.#...#.#

 

Sample Output

515

 

按鹏哥的代码来写的，虽然过了，但是感觉怪怪的

#include <iostream>#include<cstdio>using namespace std;int map[105][105];int judge(int x,int y1,int y2){    int t=1;    for(int j=y1;j<=y2;j++)        if(!map[x][j])         t=0;    return t;}int main(){    int n;    while(scanf("%d",&n)!=EOF)    {        char ch;        for(int i=1;i<=n;i++)            for(int j=1;j<=n;j++)           {            cin>>ch;            if(ch=='.')                map[i][j]=1;            else                map[i][j]=0;           }           for(int i=0;i<=n+1;i++)           {               map[n+1][i]=0;               map[i][n+1]=0;           }          // cout<<map[1][2]<<endl;           /*for(int i=1;i<=n+1;i++)            {                for(int j=1;j<=n+1;j++)                cout<<map[i][j]<<" ";                cout<<endl;            }*/            int num=0;            for(int i=1;i<=n;i++)                for(int j=1;j<=n;j++)                {                    if(map[i][j]==1)                    {                        int jj=j;                        while(map[i][jj])                        {                            int ii=i;                        while(judge(ii,j,jj))                            {                                num++;                                ii++;                            }                            jj++;                        }                    }                }            cout<<num<<endl;    }return 0;}