1866.cpp

杭电 acm部分代码 有兴趣的可以下载 谢谢

#include<stdio.h>
#include<string.h>
#include<ctype.h>
#include<math.h>
char str[510];
int hash[1001][1001];
int a,b,c,d;
int main()
{
    int i, j, k, t, len, nc, sum, num;
    while(gets(str))
    {
        memset(hash, 0, sizeof(hash));
        len = strlen(str);
        nc = 0;
        sum = 0;
        for(i = 0; i < len; i++)
        {
            num = 0;
            if(nc == 4)
                nc = 0;
            if(isdigit(str[i]))
            {
                while(isdigit(str[i])){
                    num = 10 * num + str[i] - 48;
                    i++;
                }
                nc++;
                if(nc == 1)
                    a = num;
                else if(nc == 2)
                    b = num;
                else if(nc == 3)
                    c = num;
                else if(nc == 4)
                {
                    d = num;
                    if(a > c){t = a; a = c; c = t;}
                    if(b > d){t = b; b = d; d = t;}
                    for(j = a; j < c; j++)
                        for(k = b; k < d; k++)
                            hash[j][k] = 1;
                    a = b = c = d = 0;
                }
            }
        }
        for(i = 0; i<=1000; i++)
            for(j = 0; j <= 1000; j++)
                sum += hash[i][j];
        printf("%d\n" ,sum);
    }
    return 0;
}