0_0_38818852_22399.cpp: In function 'int main()':
0_0_38818852_22399.cpp:7:9: error: 'point' was not declared in this scope; did you mean 'printf'?
7 | point a, b;
| ^~~~~
| printf
0_0_38818852_22399.cpp:9:42: error: 'a' was not declared in this scope
9 | scanf("%lf %lf %lf %lf %lf",&r, &a.x, &a.y, &b.x, &b.y);
| ^
0_0_38818852_22399.cpp:9:54: error: 'b' was not declared in this scope
9 | scanf("%lf %lf %lf %lf %lf",&r, &a.x, &a.y, &b.x, &b.y);
| ^
0_0_38818852_22399.cpp:11:12: error: 'length' was not declared in this scope
11 | if(length(a) < eps) ans = 2 * r; //函数ptp(point a, point p, double r)输入要保证a和p不重合
| ^~~~~~
0_0_38818852_22399.cpp:11:24: error: 'eps' was not declared in this scope
11 | if(length(a) < eps) ans = 2 * r; //函数ptp(point a, point p, double r)输入要保证a和p不重合
| ^~~
0_0_38818852_22399.cpp:15:17: error: 'ptp' was not declared in this scope
15 | a = ptp(a, {0,0}, r);
| ^~~
0_0_38818852_22399.cpp:18:26: error: 'dis_to_line' was not declared in this scope
18 | double dis = dis_to_line({0, 0}, a, b);
| ^~~~~~~~~~~
0_0_38818852_22399.cpp:19:16: error: 'dcmp' was not declared in this scope
19 | if(dcmp(dis, r) <= 0) ans = get_dis(a, b);
| ^~~~
0_0_38818852_22399.cpp:19:41: error: 'get_dis' was not declared in this scope; did you mean 'get_s'?
19 | if(dcmp(dis, r) <= 0) ans = get_dis(a, b);
| ^~~~~~~
| get_s
0_0_38818852_22399.cpp:22:22: error: expected ';' before 'e'
22 | point e = (a + b) / 2;
| ^~
| ;
0_0_38818852_22399.cpp:23:17: error: 'e' was not declared in this scope
23 | e = norm(e) * r;
| ^
0_0_38818852_22399.cpp:23:21: error: 'norm' was not declared in this scope
23 | e = norm(e) * r;
| ^~~~
0_0_38818852_22399.cpp:24:23: error: 'get_dis' was not declared in this scope; did you mean 'get_s'?
24 | ans = get_dis(e, a) + get_dis(e, b);
| ^~~~~~~
| get_s
|