Compilare: user.cpp: In function ‘void ReadInput()’: user.cpp:38:20: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &N); ^ user.cpp:40:77: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%lf%lf%lf", &circles[i].x, &circles[i].y, &circles[i].radius); ^ user.cpp: In function ‘void AnswerQuery()’: user.cpp:81:41: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] Point p; scanf("%lf%lf", &p.x, &p.y); ^ user.cpp: In function ‘int main()’: user.cpp:100:24: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] for(scanf("%d", &M); M > 0; M--) { ^