Compilare: user.cpp: In function ‘int main()’: user.cpp:54:12: warning: array subscript has type ‘char’ [-Wchar-subscripts] u[initx][inity][0] = true; ^ user.cpp:54:19: warning: array subscript has type ‘char’ [-Wchar-subscripts] u[initx][inity][0] = true; ^ user.cpp:60:29: warning: array subscript has type ‘char’ [-Wchar-subscripts] if(finReach[st.x][st.y] == false) { ^ user.cpp:60:35: warning: array subscript has type ‘char’ [-Wchar-subscripts] if(finReach[st.x][st.y] == false) { ^ user.cpp:61:30: warning: array subscript has type ‘char’ [-Wchar-subscripts] finReach[st.x][st.y] = true; ^ user.cpp:61:36: warning: array subscript has type ‘char’ [-Wchar-subscripts] finReach[st.x][st.y] = true; ^ user.cpp:73:26: warning: array subscript has type ‘char’ [-Wchar-subscripts] while(!blocked[nx][ny]) { ^ user.cpp:73:30: warning: array subscript has type ‘char’ [-Wchar-subscripts] while(!blocked[nx][ny]) { ^ user.cpp:74:20: warning: array subscript has type ‘char’ [-Wchar-subscripts] if(u[nx][ny][st.nrMove+1] == false) { ^ user.cpp:74:24: warning: array subscript has type ‘char’ [-Wchar-subscripts] if(u[nx][ny][st.nrMove+1] == false) { ^ user.cpp:75:21: warning: array subscript has type ‘char’ [-Wchar-subscripts] u[nx][ny][st.nrMove+1] = true; ^ user.cpp:75:25: warning: array subscript has type ‘char’ [-Wchar-subscripts] u[nx][ny][st.nrMove+1] = true; ^ user.cpp:76:43: 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:27:32: 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:28:34: 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:33:29: 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:34:41: warning: ignoring return value of ‘char* gets(char*)’, declared with attribute warn_unused_result [-Wunused-result]