这道题因为我把puzzle打成了Puzzle，卡了我很久............真的太无语了。
题目链接如下：
我的代码如下：
cpp
#include <cstdio>
#include <cctype>
#include <set>
const int maxx = 10;
int r, c, kase, cnt, temp;
char a[maxx][maxx];
int num[maxx][maxx];
int main(){
kase = 0;
while(scanf("%d", &r) == 1 && r){
scanf("%d", &c);
getchar();
cnt = 0;
for(int i = 0; i < r; ++i){
for(int j = 0; j < c; ++j){
scanf("%c", &a[i][j]);
if(isalpha(a[i][j]) && (i == 0 || j == 0 || a[i - 1][j] == '*' || a[i][j - 1] == '*')){
num[i][j] = ++cnt;
} else{
num[i][j] = -1;
}
}
getchar();
}
printf("%s", 0 == kase ? "" : "\n");
printf("puzzle #%d:\nAcross\n", ++kase);
for(int i = 0; i < r; ++i){
for(int j = 0; j < c; ++j){
if(isalpha(a[i][j])){
printf("%3d.", num[i][j]);
while(j < c && isalpha(a[i][j])){
printf("%c", a[i][j]);
++j;
}
printf("\n");
}
}
}
printf("Down\n");
std::set<int> st;
for(int j = 0; j < c; ++j){
for(int i = 0; i < r; ++i){
if(isalpha(a[i][j])){
st.insert(num[i][j]);
while(i < r && isalpha(a[i][j])){
++i;
}
}
}
}
for(int i = 0; i < r; ++i){
for(int j = 0; j < c; ++j){
if(st.find(num[i][j]) != st.end()){
printf("%3d.", num[i][j]);
temp = i;
while(temp < r && isalpha(a[temp][j])){
printf("%c", a[temp][j]);
++temp;
}
printf("\n");
}
}
}
}
return 0;
}