Compilare: user.cpp: In function ‘int main()’: user.cpp:37:27: warning: format ‘%d’ expects argument of type ‘int*’, but argument 2 has type ‘LL* {aka long long int*}’ [-Wformat=] scanf("%d", &x); ^ user.cpp:40:43: warning: format ‘%d’ expects argument of type ‘int*’, but argument 2 has type ‘LL* {aka long long int*}’ [-Wformat=] scanf("%d%d", &a[0], &b[0]); ^ user.cpp:40:43: warning: format ‘%d’ expects argument of type ‘int*’, but argument 3 has type ‘LL* {aka long long int*}’ [-Wformat=] user.cpp:42:57: warning: format ‘%d’ expects argument of type ‘int*’, but argument 2 has type ‘LL* {aka long long int*}’ [-Wformat=] scanf("%d%d", &a[i - v[o]], &b[i - v[o]]); ^ user.cpp:42:57: warning: format ‘%d’ expects argument of type ‘int*’, but argument 3 has type ‘LL* {aka long long int*}’ [-Wformat=] user.cpp:14:38: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("hacker3.in", "r", stdin); ^ user.cpp:15:40: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("hacker3.out", "w", stdout); ^ user.cpp:22:22: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%lld", &n); ^ user.cpp:35:46: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("hacker3.in", "r", stdin); ^ user.cpp:37:28: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &x); ^ user.cpp:40:44: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d", &a[0], &b[0]); ^ user.cpp:42:58: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d", &a[i - v[o]], &b[i - v[o]]); ^ user.cpp:58:40: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%lld%lld", &a[i], &b[i]); ^