Compilare: user.cpp: In function ‘int main()’: user.cpp:55:9: warning: unused variable ‘n’ [-Wunused-variable] int n,r,c,i=1,p; ^ user.cpp:55:13: warning: unused variable ‘c’ [-Wunused-variable] int n,r,c,i=1,p; ^ user.cpp: In function ‘int aprins(int)’: user.cpp:26:1: warning: control reaches end of non-void function [-Wreturn-type] } ^ user.cpp: In function ‘int transformare(int)’: user.cpp:49:1: warning: control reaches end of non-void function [-Wreturn-type] } ^ user.cpp: In function ‘int main()’: user.cpp:53:35: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("cifre5.in","r",stdin); ^ user.cpp:54:37: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("cifre5.out","w",stdout); ^ user.cpp:57:19: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&r); ^