Compilare: user.cpp: In function ‘int main()’: user.cpp:16:18: warning: format ‘%s’ expects argument of type ‘char*’, but argument 2 has type ‘char (*)[42]’ [-Wformat=] scanf("%s",&s); ^ user.cpp:12:19: warning: unused variable ‘b’ [-Wunused-variable] int i,j,t,k,a,b,c; ^ user.cpp:13:39: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("subsiruri2.in","r",stdin); ^ user.cpp:14:41: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("subsiruri2.out","w",stdout); ^ user.cpp:15:19: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&n); ^ user.cpp:16:19: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%s",&s); ^