Compilare: user.cpp: In function ‘int main()’: user.cpp:15:8: warning: suggest explicit braces to avoid ambiguous ‘else’ [-Wparentheses] if (v[i] == 1) ^ user.cpp:7:13: warning: unused variable ‘x’ [-Wunused-variable] int n, i, x, ans; ^ user.cpp:5:33: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("emax.in", "r", stdin); ^ user.cpp:6:35: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("emax.out", "w", stdout); ^ user.cpp:8:18: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &n); ^ user.cpp:10:23: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &v[i]); ^