Compilare: user.cpp: In function ‘void PushCell(int, int, int)’: user.cpp:58:9: warning: unused variable ‘dist’ [-Wunused-variable] int dist = lin + 1 + col + 1; ^ user.cpp: In function ‘void Solve()’: user.cpp:133:37: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(dif < distances.size()) ^ user.cpp: In function ‘void Read()’: user.cpp:67:26: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d", &p); ^ user.cpp:68:40: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d %d %d", &n, &m, &k); ^ user.cpp:74:36: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d", &tmp); ^