Compilare: user.cpp: In function ‘int main()’: user.cpp:91:29: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("h.in", "r", stdin); ^ user.cpp:92:31: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("h.out", "w", stdout); ^ user.cpp:94:17: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &n); ^ user.cpp:96:51: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d%d", &v[i].x, &v[i].yjos, &v[i].ysus); ^ user.cpp: In function ‘int bsearch(int, int, int)’: user.cpp:37:1: warning: control reaches end of non-void function [-Wreturn-type] } ^