Compilare: user.cpp: In function ‘void CreateMat(int, int)’: user.cpp:13:9: warning: unused variable ‘x’ [-Wunused-variable] int x,y; ^ user.cpp:13:11: warning: unused variable ‘y’ [-Wunused-variable] int x,y; ^ user.cpp: In function ‘void PrintSolution(int)’: user.cpp:56:16: warning: statement has no effect [-Wunused-value] for( nrelem; nrelem > 0 ; nrelem--) ^ user.cpp:57:37: warning: format ‘%d’ expects argument of type ‘int’, but argument 2 has type ‘int*’ [-Wformat=] printf("%d ",&subsir[nrelem]); ^ user.cpp: In function ‘void Preparation(int&, int&)’: user.cpp:62:34: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("cmlsc.in","r",stdin); ^ user.cpp:63:36: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("cmlsc.out","w",stdout); ^ user.cpp:64:27: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d",&n1,&n2); ^ user.cpp:66:30: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d ",&sir1[i]); ^ user.cpp:68:29: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&sir2[i]); ^