0_0_33525930_26115.cpp: In function 'int main()':
0_0_33525930_26115.cpp:18:9: error: 'Point' was not declared in this scope
Point p[n];
^
0_0_33525930_26115.cpp:19:54: error: 'p' was not declared in this scope
for (int i = 0; i < n; i++) scanf("%lf%lf", &p[i].x, &p[i].y);
^
0_0_33525930_26115.cpp:20:24: error: 'p' was not declared in this scope
double ar = PA(p, n);
^
0_0_33525930_26115.cpp:20:28: error: 'PA' was not declared in this scope
double ar = PA(p, n);
^
0_0_33525930_26115.cpp:24:13: error: 'Vector' was not declared in this scope
Vector v1 = p[0]-p[1], v2 = p[2]-p[1];
^
0_0_33525930_26115.cpp:25:31: error: 'v1' was not declared in this scope
double an = Angle(v1, v2)/2;
^
0_0_33525930_26115.cpp:25:35: error: 'v2' was not declared in this scope
double an = Angle(v1, v2)/2;
^
0_0_33525930_26115.cpp:25:37: error: 'Angle' was not declared in this scope
double an = Angle(v1, v2)/2;
^
0_0_33525930_26115.cpp:26:40: error: 'ang' was not declared in this scope
double len = (double)r/sin(ang);
^
0_0_33525930_26115.cpp:27:20: error: expected ';' before 'v3'
Vector v3 = Rotate(v1, ang);
^
0_0_33525930_26115.cpp:28:19: error: expected ';' before 'o'
Point o = p[1]+v3/Length(v3)*len;
^
0_0_33525930_26115.cpp:29:13: error: 'Circle' was not declared in this scope
Circle c = Circle(o, (double)r);
^
0_0_33525930_26115.cpp:33:17: error: 'Line' was not declared in this scope
Line l = Line(p[i], p[(i+1)%n]-p[i]);
^
0_0_33525930_26115.cpp:34:53: error: 'l' was not declared in this scope
int cnt = getLineCircleIntersection(l, c);
^
0_0_33525930_26115.cpp:34:56: error: 'c' was not declared in this scope
int cnt = getLineCircleIntersection(l, c);
^
0_0_33525930_26115.cpp:34:57: error: 'getLineCircleIntersection' was not declared in this scope
int cnt = getLineCircleIntersection(l, c);
^
0_0_33525930_26115.cpp:49:24: error: expected ';' before 'v1'
Vector v1 = p[i]-p[(i+1)%n], v2 = p[(i+2)%n]-p[(i+1)%n];
^
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