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:55:27: warning: array subscript has type ‘char’ [-Wchar-subscripts] if(!finReach[x][y]) { ^ user.cpp:55:30: warning: array subscript has type ‘char’ [-Wchar-subscripts] if(!finReach[x][y]) { ^ user.cpp:56:27: warning: array subscript has type ‘char’ [-Wchar-subscripts] finReach[x][y] = true; ^ user.cpp:56:30: warning: array subscript has type ‘char’ [-Wchar-subscripts] finReach[x][y] = true; ^ user.cpp:70:24: warning: array subscript has type ‘char’ [-Wchar-subscripts] if(u[nx][ny][nrMove+1] == false) { ^ user.cpp:70:28: warning: array subscript has type ‘char’ [-Wchar-subscripts] if(u[nx][ny][nrMove+1] == false) { ^ user.cpp:71:25: warning: array subscript has type ‘char’ [-Wchar-subscripts] u[nx][ny][nrMove+1] = true; ^ user.cpp:71:29: warning: array subscript has type ‘char’ [-Wchar-subscripts] u[nx][ny][nrMove+1] = true; ^ user.cpp:25:32: 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:26:34: 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] for(i = 0; i < n; i++) gets(A[i]); ^ user.cpp:34:12: warning: ignoring return value of ‘char* gets(char*)’, declared with attribute warn_unused_result [-Wunused-result] gets(S); ^ In file included from /usr/include/stdio.h:934:0, from /usr/include/c++/4.8/cstdio:42, from user.cpp:1: In function ‘char* gets(char*)’,