Compilare: user.cpp: In function ‘void find_moment(int, int)’: user.cpp:32:12: warning: unused variable ‘t’ [-Wunused-variable] double t; ^ user.cpp: In function ‘int main()’: user.cpp:92:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while(p<v.size() && 1LL * v[p].A <= 1LL * q[i].t * v[p].B) ^ user.cpp:69:38: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("kinetic.in", "r", stdin); ^ user.cpp:70:40: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("kinetic.out", "w", stdout); ^ user.cpp:72:26: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d", &N, &Q); ^ user.cpp:75:61: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d", &a[i].first, &a[i].second), poz[i] = i; ^ user.cpp:78:64: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d%d", &q[i].x, &q[i].y, &q[i].t), q[i].id = i; ^