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#include <iostream>
#include <cstdio>
#include <string>
#include <algorithm>
#include <vector>
#include <queue>
#include <cstring>
#include <cstring>
#include <map>
using namespace std;

map<string, int> M;
string source, destination;
int dist[300];
int visited[300];
vector<string> P[300];
vector ...

to Tiramisu
I have used three spaces in second line. But WA remains. I need more test cases where my code fails to correct output.
Thanks in advance.

Why WA?? I have checked all test case from this forum. But I really can't figure out the bug. please help me anyone.
My code is given below :

#include <iostream>
#include <string>
#include <map>
using namespace std;
string ans = "", ans2, ans3;
map<int, int> M, pos;
int vagfol, mod, p, len, l ...