Compilare: user.cpp: In function ‘int main()’: user.cpp:47:12: warning: array subscript has type ‘char’ [-Wchar-subscripts] u[initx][inity][0] = true; ^ user.cpp:47:19: warning: array subscript has type ‘char’ [-Wchar-subscripts] u[initx][inity][0] = true; ^ user.cpp:53:29: warning: array subscript has type ‘char’ [-Wchar-subscripts] if(finReach[st.x][st.y] == false) { ^ user.cpp:53:35: warning: array subscript has type ‘char’ [-Wchar-subscripts] if(finReach[st.x][st.y] == false) { ^ user.cpp:54:30: warning: array subscript has type ‘char’ [-Wchar-subscripts] finReach[st.x][st.y] = true; ^ user.cpp:54:36: warning: array subscript has type ‘char’ [-Wchar-subscripts] finReach[st.x][st.y] = true; ^ user.cpp:67:65: warning: array subscript has type ‘char’ [-Wchar-subscripts] while(0 <= nx && nx < n && 0 <= ny && ny < m && A[nx][ny] == '.') { ^ user.cpp:67:69: warning: array subscript has type ‘char’ [-Wchar-subscripts] while(0 <= nx && nx < n && 0 <= ny && ny < m && A[nx][ny] == '.') { ^ user.cpp:68:24: warning: array subscript has type ‘char’ [-Wchar-subscripts] if(u[nx][ny][st.nrMove+1] == false) { ^ user.cpp:68:28: warning: array subscript has type ‘char’ [-Wchar-subscripts] if(u[nx][ny][st.nrMove+1] == false) { ^ user.cpp:69:25: warning: array subscript has type ‘char’ [-Wchar-subscripts] u[nx][ny][st.nrMove+1] = true; ^ user.cpp:69:29: warning: array subscript has type ‘char’ [-Wchar-subscripts] u[nx][ny][st.nrMove+1] = true; ^ user.cpp:70:47: warning: narrowing conversion of ‘(((int)st.state::nrMove) + 1)’ from ‘int’ to ‘short int’ inside { } [-Wnarrowing] q.push( {nx, ny, st.nrMove+1} ); ^ user.cpp:26:32: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen(inFile, "r", stdin); ^ user.cpp:27:34: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen(outFile, "w", stdout); ^ user.cpp:32:29: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d\n", &n, &m); ^ user.cpp:33:38: warning: ignoring return value of ‘char* gets(char*)’, declared with attribute warn_unused_result [-Wunused-result]