0_0_25734684_20790.cpp: In function 'int main()': 0_0_25734684_20790.cpp:102:83: error: expected primary-expression before '<=' token if((guest[k].x-x)*(guest[k].x-x) + (guest[k].y-y)*(guest[k].y-y)) <= guest[k].l*guest[k].l) ^