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如果不看discuss 绝对不知道 数据范围100绝对是个坑 1000真的能过#include <stdio.h> #define N 1000 //据说数据这里有个坑 开成1000就过了 如果过了就真的有个坑 char arr[N][N]; int r, l, ans; void dfs(int x, int y) { int i, j; int dx, dy; int nx, ny; arr[x][y] = '.'; for(dx=-1; dx<=1; dx++) for(dy=-1; dy<=1; dy++) { nx = x + dx; ny = y + dy; if(arr[nx][ny] == 'W' && nx>=0 && nx<r && ny>=0 && ny<l) dfs(nx, ny); } return ; } int main() { int i, j, k; scanf("%d %d", &r, &l); for(i=0; i<r; i++) //for(j=0; j<l; j++) //我只想说为何用%c 样例输出就是8 // scanf("%c", &arr[i][j]); //用%s 样例输出就是3 scanf("%s", arr[i]); for(i=0; i<r; i++) for(j=0; j<l; j++) if(arr[i][j] == 'W') { dfs(i, j); ans++; } printf("%d\n", ans); return 0; } Followed by:
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