0_0_19230903_3380.cpp:31:14: error: 'Po' does not name a type
struct Line{ Po
^
0_0_19230903_3380.cpp:33:1: error: expected ')' before 'int'
int _a,Po
^
0_0_19230903_3380.cpp: In function 'bool parallel(const Line&, const Line&)':
0_0_19230903_3380.cpp:36:34: error: 'const struct Line' has no member named 'a'
const Line& rr){ return fabs((ll.a.x-ll.b.x)*(rr.a.y-rr.b.y)-(ll.a.y-ll.b.y)*(rr.a.x-rr.b.x))<eps;} Po
^
0_0_19230903_3380.cpp:36:41: error: 'const struct Line' has no member named 'b'
const Line& rr){ return fabs((ll.a.x-ll.b.x)*(rr.a.y-rr.b.y)-(ll.a.y-ll.b.y)*(rr.a.x-rr.b.x))<eps;} Po
^
0_0_19230903_3380.cpp:36:50: error: 'const struct Line' has no member named 'a'
const Line& rr){ return fabs((ll.a.x-ll.b.x)*(rr.a.y-rr.b.y)-(ll.a.y-ll.b.y)*(rr.a.x-rr.b.x))<eps;} Po
^
0_0_19230903_3380.cpp:36:57: error: 'const struct Line' has no member named 'b'
const Line& rr){ return fabs((ll.a.x-ll.b.x)*(rr.a.y-rr.b.y)-(ll.a.y-ll.b.y)*(rr.a.x-rr.b.x))<eps;} Po
^
0_0_19230903_3380.cpp:36:66: error: 'const struct Line' has no member named 'a'
const Line& rr){ return fabs((ll.a.x-ll.b.x)*(rr.a.y-rr.b.y)-(ll.a.y-ll.b.y)*(rr.a.x-rr.b.x))<eps;} Po
^
0_0_19230903_3380.cpp:36:73: error: 'const struct Line' has no member named 'b'
const Line& rr){ return fabs((ll.a.x-ll.b.x)*(rr.a.y-rr.b.y)-(ll.a.y-ll.b.y)*(rr.a.x-rr.b.x))<eps;} Po
^
0_0_19230903_3380.cpp:36:82: error: 'const struct Line' has no member named 'a'
const Line& rr){ return fabs((ll.a.x-ll.b.x)*(rr.a.y-rr.b.y)-(ll.a.y-ll.b.y)*(rr.a.x-rr.b.x))<eps;} Po
^
0_0_19230903_3380.cpp:36:89: error: 'const struct Line' has no member named 'b'
const Line& rr){ return fabs((ll.a.x-ll.b.x)*(rr.a.y-rr.b.y)-(ll.a.y-ll.b.y)*(rr.a.x-rr.b.x))<eps;} Po
^
0_0_19230903_3380.cpp: At global scope:
0_0_19230903_3380.cpp:36:101: error: 'Po' does not name a type
const Line& rr){ return fabs((ll.a.x-ll.b.x)*(rr.a.y-rr.b.y)-(ll.a.y-ll.b.y)*(rr.a.x-rr.b.x))<eps;} Po
^
0_0_19230903_3380.cpp:50:12: error: 'Po' does not name a type
double>ans;Po
^
0_0_19230903_3380.cpp:64:7: error: 'Po' does not name a type
const Po
^
0_0_19230903_3380.cpp:65:1: error: expected ',' or '...' before 'int'
int & o,
^
0_0_19230903_3380.cpp: In function 'double cross(int)':
0_0_19230903_3380.cpp:69:22: error: 'a' was not declared in this scope
int & b){ return (a.x-o.x)*(b.y-o.y) - (b.x-o.x)*(a.y-o.y);}
^
0_0_19230903_3380.cpp:69:26: error: 'o' was not declared in this scope
int & b){ return (a.x-o.x)*(b.y-o.y) - (b.x-o.x)*(a.y-o.y);}
^
0_0_19230903_3380.cpp:69:32: error: 'b' was not declared in this scope
int & b){ return (a.x-o.x)*(b.y-o.y) - (b.x-o.x)*(a.y-o.y);}
^
0_0_19230903_3380.cpp: At global scope:
0_0_19230903_3380.cpp:71:19: error: 'Po' was not declared in this scope
int inside_convex(Po
^
0_0_19230903_3380.cpp:74:1: error: expected primary-expression before 'int'
int n, Po
^
0_0_19230903_3380.cpp:74:8: error: 'Po' was not declared in this scope
int n, Po
^
0_0_19230903_3380.cpp:75:6: error: expression list treated as compound expression in initializer [-fpermissive]
int q){ bool s[3] = {1, 1, 1}; ps[n] = ps[0]; for(
^
0_0_19230903_3380.cpp:75:7: error: expected ',' or ';' before '{' token
int q){ bool s[3] = {1, 1, 1}; ps[n] = ps[0]; for(
^
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