【例题 6-17 UVa 10562】Undraw the Trees
【链接】 我是链接,点我呀:)
【题意】
【题解】
模拟+递归【代码】
#include <bits/stdc++.h>
using namespace std;
const int N = 200;
string s[N+10];
int n;
bool is(char key){
if (key!='-' && key != '|' && key != ' ' && key != '#') return true;
return false;
}
void dfs(int x,int y){
// cout << x <<' '<<y<<endl;
// if (s[x][y]==' ') cout <<"???";
cout <<s[x][y];cout << "(";
if (x+1 < n && s[x+1][y]=='|'){
int l = y,r = y;
if (x+2 < n){
while (l-1 >= 0 && s[x+2][l-1]=='-') l--;
while (r+1 <(int) s[x+2].size() && s[x+2][r+1]=='-') r++;
if (x+3 < n){
for (int i = l;i <= r;i++){
if (i<(int)s[x+3].size() && is(s[x+3][i])) {
dfs(x+3,i);
}
}
}
}
}
cout << ")";
}
int main(){
#ifdef LOCAL_DEFINE
freopen("F:\\c++source\\rush_in.txt", "r", stdin);
#endif
ios::sync_with_stdio(0),cin.tie(0);
int T;
cin >> T;
cin.get();
while (T--){
n = 0;
while (getline(cin,s[n])){
if (s[n][0]=='#') break;
// cout << s[n];
// cout <<"size="<<' '<<s[n].size()<<endl;
n++;
}
cout << "(";
if (n>=1){
for (int i = 0;i < (int) s[0].size();i++)
if (is(s[0][i]))
dfs(0,i);
}
cout << ")"<<endl;
}
return 0;
}