POJ 1300 Open Door

不写了。。。欧拉通路。读入太迷。

#include <stdio.h>
#include <string.h>
#define N 101

int main()
{
    char s[200];
    int door,de[N],odd,eve,n,m,p,cc,len,k;
    while(scanf("%s",s) != EOF)
    {
        if(s[3] == 'O')
            break;
        scanf("%d %d",&m,&n); ///这里如歌scanf("%d %d
",&m,&n) 一直WA
        getchar();            ///
        memset(de,0,sizeof(de));
        door = odd = eve = 0;
        for(int i = 0; i < n; ++i)
        {
            p = 0;
            gets(s);
            while(s[p] && s[p] == ' ') ++ p;
            while(sscanf(s + p,"%d%n",&k,&cc) == 1)
            {
                ++door;
                de[i] ++;
                de[k] ++;
                p += cc;
                while(s[p] && s[p] == ' ') ++ p;
            }
        }
        scanf("%*s");
        for(int i = 0; i < n; ++i)
            if(de[i]&1)
                ++odd;
            else
                ++eve;
        if(odd == 0 && m == 0 || odd == 2 && (de[m]&1) && (de[0] & 1) && m != 0)
            printf("YES %d
",door);
        else
            printf("NO
");
    }
    return 0;}