Compilare: user.cpp: In function ‘int get_dp()’: user.cpp:81:1: warning: no return statement in function returning non-void [-Wreturn-type] } ^ user.cpp: In function ‘void solve()’: user.cpp:85:9: warning: unused variable ‘i’ [-Wunused-variable] int i, j, p, val = 0; ^ user.cpp:85:12: warning: unused variable ‘j’ [-Wunused-variable] int i, j, p, val = 0; ^ user.cpp:85:15: warning: unused variable ‘p’ [-Wunused-variable] int i, j, p, val = 0; ^ user.cpp:85:18: warning: unused variable ‘val’ [-Wunused-variable] int i, j, p, val = 0; ^ user.cpp: In function ‘void read()’: user.cpp:23:24: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &x); ^ user.cpp:31:41: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d", &v[n].x, &v[n].y); ^ user.cpp: In function ‘int main()’: user.cpp:95:36: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("bibel.in", "r", stdin); ^ user.cpp:96:38: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("bibel.out", "w", stdout); ^