Eroare de compilare: user.cpp:4:2: error: ‘freopen’ does not name a type freopen fin("chiftea.in", "r", stdin); ^ user.cpp:5:9: error: expected constructor, destructor, or type conversion before ‘(’ token freopen("chiftea.out", "w", stdout); ^ user.cpp: In function ‘int main()’: user.cpp:12:4: error: ‘fin’ was not declared in this scope fin >> t; ^ user.cpp:15:19: warning: format ‘%d’ expects argument of type ‘int*’, but argument 2 has type ‘long long int*’ [-Wformat=] scanf("%d", &n); ^ user.cpp:23:22: warning: format ‘%d’ expects argument of type ‘int’, but argument 2 has type ‘long long int’ [-Wformat=] printf("%d \n", ans ) ^ user.cpp:24:4: error: expected ‘;’ before ‘}’ token } ^ user.cpp:15:20: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &n); ^