Compilare: user.cpp: In function ‘int main()’: user.cpp:27:28: warning: unused variable ‘lll’ [-Wunused-variable] int i, j, l,ll = 0,lll = 0;long long x; ^ user.cpp:27:46: warning: unused variable ‘x’ [-Wunused-variable] int i, j, l,ll = 0,lll = 0;long long x; ^ user.cpp:22:37: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("amlei.in", "rt", stdin); ^ user.cpp:23:39: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("amlei.out", "wt", stdout); ^ user.cpp:34:32: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &l); ^ user.cpp:47:32: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &l); ^