Compilare: user.cpp: In function ‘int cautare2(int, int)’: user.cpp:28:22: warning: array subscript has type ‘char’ [-Wchar-subscripts] v[m[j][i]]++; ^ user.cpp:25:15: warning: unused variable ‘c’ [-Wunused-variable] int i, j, c, col; ^ user.cpp:25:18: warning: unused variable ‘col’ [-Wunused-variable] int i, j, c, col; ^ user.cpp: In function ‘int main()’: user.cpp:45:21: warning: variable ‘aux’ set but not used [-Wunused-but-set-variable] int q, i, k, p, aux; ^ user.cpp:43:39: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen ( "qmatrix.in","r",stdin ); ^ user.cpp:44:41: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen ( "qmatrix.out","w",stdout ); ^ user.cpp:47:39: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf ( "%d%d%d%d\n",&n,&x,&y,&q ); ^ user.cpp:52:31: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf ( "%d%d",&k,&p ); ^