Compilare: user.cpp: In function ‘void dif()’: user.cpp:12:15: warning: unused variable ‘elem’ [-Wunused-variable] int i;int elem=0;bool p=0;int c=99999999,o=0; ^ user.cpp:12:35: warning: unused variable ‘c’ [-Wunused-variable] int i;int elem=0;bool p=0;int c=99999999,o=0; ^ user.cpp:12:46: warning: unused variable ‘o’ [-Wunused-variable] int i;int elem=0;bool p=0;int c=99999999,o=0; ^ user.cpp: In function ‘int main()’: user.cpp:36:18: warning: format ‘%s’ expects argument of type ‘char*’, but argument 2 has type ‘char (*)[100007]’ [-Wformat=] scanf("%s",&v); ^ user.cpp:33:36: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("smooth2.in","r",stdin); ^ user.cpp:34:38: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("smooth2.out","w",stdout); ^ user.cpp:36:19: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%s",&v); ^