answer.code: In function ‘bool check(const std::vector<std::vector<point> >&)’:
answer.code:61:9: error: ‘de’ was not declared in this scope
   61 |         de(res);
      |         ^~
answer.code: At global scope:
answer.code:159:5: error: redefinition of ‘long long int T’
  159 | int T, n;
      |     ^
answer.code:5:5: note: ‘long long int T’ previously declared here
    5 | int T, n;
      |     ^
answer.code:159:8: error: redefinition of ‘long long int n’
  159 | int T, n;
      |        ^
answer.code:5:8: note: ‘long long int n’ previously declared here
    5 | int T, n;
      |        ^
answer.code:161:8: error: redefinition of ‘struct point’
  161 | struct point {
      |        ^~~~~
answer.code:7:8: note: previous definition of ‘struct point’
    7 | struct point {
      |        ^~~~~
answer.code:190:5: error: redefinition of ‘long long int area2(const std::vector<point>&)’
  190 | int area2(const vector<point>& tri) {
      |     ^~~~~
answer.code:40:5: note: ‘long long int area2(const std::vector<point>&)’ previously defined here
   40 | int area2(const vector<point>& tri) {
      |     ^~~~~
answer.code:194:5: error: redefinition of ‘long long int area2(const std::vector<std::vector<point> >&)’
  194 | int area2(const vector<vector<point>>& tris) {
      |     ^~~~~
answer.code:44:5: note: ‘long long int area2(const std::vector<std::vector<point> >&)’ previously defined here
   44 | int area2(const vector<vector<point>>& tris) {
      |     ^~~~~
answer.code:200:6: error: redefinition of ‘bool check(const std::vector<point>&)’
  200 | bool check(const vector<point>& tri) {
      |      ^~~~~
answer.code:50:6: note: ‘bool check(const std::vector<point>&)’ previously defined here
   50 | bool check(const vector<point>& tri) {
      |      ^~~~~
answer.code:207:6: error: redefinition of ‘bool check(const std::vector<std::vector<point> >&)’
  207 | bool check(const vector<vector<point>>& tris) {
      |      ^~~~~
answer.code:57:6: note: ‘bool check(const std::vector<std::vector<point> >&)’ previously defined here
   57 | bool check(const vector<vector<point>>& tris) {
      |      ^~~~~
answer.code:217:11: error: redefinition of ‘const long long int e9’
  217 | const int e9 = 1e9, e8 = 1e8;
      |           ^~
answer.code:67:11: note: ‘const long long int e9’ previously defined here
   67 | const int e9 = 1e9, e8 = 1e8, e7 = 1e7;
      |           ^~
answer.code:217:21: error: redefinition of ‘const long long int e8’
  217 | const int e9 = 1e9, e8 = 1e8;
      |                     ^~
answer.code:67:21: note: ‘const long long int e8’ previously defined here
   67 | const int e9 = 1e9, e8 = 1e8, e7 = 1e7;
      |                     ^~
answer.code:219:23: error: redefinition of ‘std::vector<std::vector<point> > ans’
  219 | vector<vector<point>> ans;
      |                       ^~~
answer.code:69:23: note: ‘std::vector<std::vector<point> > ans’ previously defined here
   69 | vector<vector<point>> ans;
      |                       ^~~
answer.code:221:6: error: redefinition of ‘bool solve()’
  221 | bool solve() {
      |      ^~~~~
answer.code:71:6: note: ‘bool solve()’ previously defined here
   71 | bool solve() {
      |      ^~~~~
answer.code:259:8: error: redefinition of ‘int main()’
  259 | signed main() {
      |        ^~~~
answer.code:132:8: note: ‘int main()’ previously defined here
  132 | signed main() {
      |        ^~~~