Compilare: user.cpp: In function ‘void expand()’: user.cpp:39:25: warning: suggest parentheses around ‘&&’ within ‘||’ [-Wparentheses] if(p1 == px && p2 == py || aux[p1][p2] == 5) ^ user.cpp: In function ‘int main()’: user.cpp:130:28: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen(in, "r", stdin); ^ user.cpp:131:30: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen(out, "w", stdout); ^ user.cpp: In function ‘void citire()’: user.cpp:103:27: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d", &R, &C); ^ user.cpp:106:30: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%s", mat[i]+1); ^