Compilare: main.cpp: In function 'void inmatr(int (*)[4], int (*)[4])': main.cpp:18:10: warning: variable 'kj' set but not used [-Wunused-but-set-variable] int ki,i,kj,j; ^~ main.cpp: In function 'int main()': main.cpp:36:33: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("2sah.in","r",stdin); ^ main.cpp:37:35: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("2sah.out","w",stdout); ^ main.cpp:38:29: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d%d",&p,&n,&k); ^