Submission #524522

#	Time	Username	Problem	Language	Result	Execution time	Memory
524522		tato	Trener (COCI20_trener)	C++14	Compilation error	0 ms	0 KiB

trener

#include <bits/stdc++.h>

using namespace std;





long long p = 1e9+7;
map <string, long long > mp;
long long pas = 0;
int n,k;
vector <string > v[51];
long long g[51][1501];
int used[51][1501];
bool check(string s, string l)
{
	
	string t = l.substr(0,l.size() - 1);
	string f = l.substr(1);
	if(s == t or s == f)
		return true;
	else
		return false;
	
}

long long dfs(pair <int,int> par,int m)
{
	if(m == n + 1)
		return 1;
	if(used[par.first][par.second] == 1)
		return g[par.first][par.second];
	used[par.firs
	t][par.second] = 1;
	for(int i = 0; i < k; i++)
	if(check(v[par.first][par.second], v[m][i]))
		{
			long long cnt = dfs({m,i}, m + 1);
			g[par.first][par.second] = (g[par.first][par.second] + cnt) % p;
		}
			
	return  g[par.first][par.second];

	
}

void answer()
{

	string s;
	cin >> n >> k;
	

	
	
	for(int i = 1; i <= n; i++)
		for(int j = 1; j <= k; j++)
			{
				cin >> s;
				v[i].push_back(s);
			}
	for (int i = 0; i < k; i++)
		pas = (dfs({1,i},2) + pas) % p;
	
	cout << pas;
	
	
}


int main()
{
	int t = 1;
	//cin >> t;
	
	while(t--)
		answer();
	
	
	
	
	return 0;
}

Compilation message (stderr)

trener.cpp: In function 'long long int dfs(std::pair<int, int>, int)':
trener.cpp:34:11: error: 'struct std::pair<int, int>' has no member named 'firs'; did you mean 'first'?
   34 |  used[par.firs
      |           ^~~~
      |           first
trener.cpp:34:15: error: expected ']' before 't'
   34 |  used[par.firs
      |               ^
      |               ]
   35 |  t][par.second] = 1;
      |  ~