Created
October 30, 2019 15:22
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/* 삼각형의 면적이 최대 int 범위를 넘지 않으므로 자료형은 int로 해도 무방하다 */ | |
#include <iostream> | |
using namespace std; | |
int main(void) { | |
ios_base::sync_with_stdio(false); | |
cin.tie(nullptr); | |
long long x1, x2, x3, y1, y2, y3; | |
cin >> x1 >> y1; | |
cin >> x2 >> y2; | |
cin >> x3 >> y3; | |
long long s = (x2 - x1) * (y3 - y1) - (y2 - y1) * (x3 - x1); | |
if (s < 0) { | |
cout << -1 << '\n'; | |
} | |
else if (s == 0) { | |
cout << 0 << '\n'; | |
} | |
else { | |
cout << 1 << '\n'; | |
} | |
return 0; | |
} |
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