answer.code:213:14: error: expected constructor, destructor, or type conversion before ‘(’ token
  213 |         scanf("%lld", &T);
      |              ^
answer.code:214:9: error: expected unqualified-id before ‘while’
  214 |         while (T--) {
      |         ^~~~~
answer.code:259:1: error: expected declaration before ‘}’ token
  259 | }
      | ^
answer.code:263:11: error: redefinition of ‘const long long int inf’
  263 | const int inf = 0x3f3f3f3f3f3f;
      |           ^~~
answer.code:4:11: note: ‘const long long int inf’ previously defined here
    4 | const int inf = 0x3f3f3f3f3f3f;
      |           ^~~
answer.code:264:11: error: redefinition of ‘const long long int N’
  264 | const int N = 5010;
      |           ^
answer.code:5:11: note: ‘const long long int N’ previously defined here
    5 | const int N = 5010;
      |           ^
answer.code:265:5: error: redefinition of ‘long long int dis [5010]’
  265 | int dis[N], pre[N], preve[N];
      |     ^~~
answer.code:6:5: note: ‘long long int dis [5010]’ previously declared here
    6 | int dis[N], pre[N], preve[N];
      |     ^~~
answer.code:265:13: error: redefinition of ‘long long int pre [5010]’
  265 | int dis[N], pre[N], preve[N];
      |             ^~~
answer.code:6:13: note: ‘long long int pre [5010]’ previously declared here
    6 | int dis[N], pre[N], preve[N];
      |             ^~~
answer.code:265:21: error: redefinition of ‘long long int preve [5010]’
  265 | int dis[N], pre[N], preve[N];
      |                     ^~~~~
answer.code:6:21: note: ‘long long int preve [5010]’ previously declared here
    6 | int dis[N], pre[N], preve[N];
      |                     ^~~~~
answer.code:266:8: error: redefinition of ‘struct edge’
  266 | struct edge {
      |        ^~~~
answer.code:7:8: note: previous definition of ‘struct edge’
    7 | struct edge {
      |        ^~~~
answer.code:273:14: error: redefinition of ‘std::vector<edge> e [5010]’
  273 | vector<edge> e[N];
      |              ^
answer.code:14:14: note: ‘std::vector<edge> e [5010]’ previously declared here
   14 | vector<edge> e[N];
      |              ^
answer.code:274:6: error: redefinition of ‘void addedge(long long int, long long int, long long int, long long int)’
  274 | void addedge(int from, int to, int cost, int capacity)
      |      ^~~~~~~
answer.code:15:6: note: ‘void addedge(long long int, long long int, long long int, long long int)’ previously defined here
   15 | void addedge(int from, int to, int cost, int capacity)
      |      ^~~~~~~
answer.code:279:6: error: redefinition of ‘bool spfa(long long int, long long int, long long int)’
  279 | bool spfa(int s, int t, int cnt)
      |      ^~~~
answer.code:20:6: note: ‘bool spfa(long long int, long long int, long long int)’ previously defined here
   20 | bool spfa(int s, int t, int cnt)
      |      ^~~~
answer.code:312:16: error: redefinition of ‘std::pair<long long int, long long int> mincost(long long int, long long int, long long int)’
  312 | pair<int, int> mincost(int s, int t, int cnt)
      |                ^~~~~~~
answer.code:53:16: note: ‘std::pair<long long int, long long int> mincost(long long int, long long int, long long int)’ previously defined here
   53 | pair<int, int> mincost(int s, int t, int cnt)
      |                ^~~~~~~
answer.code:335:5: error: redefinition of ‘long long int colcnt [5010]’
  335 | int colcnt[N], col[N], l[N], val[N];
      |     ^~~~~~
answer.code:76:5: note: ‘long long int colcnt [5010]’ previously declared here
   76 | int colcnt[N], col[N], l[N], val[N];
      |     ^~~~~~
answer.code:335:16: error: redefinition of ‘long long int col [5010]’
  335 | int colcnt[N], col[N], l[N], val[N];
      |                ^~~
answer.code:76:16: note: ‘long long int col [5010]’ previously declared here
   76 | int colcnt[N], col[N], l[N], val[N];
      |                ^~~
answer.code:335:24: error: redefinition of ‘long long int l [5010]’
  335 | int colcnt[N], col[N], l[N], val[N];
      |                        ^
answer.code:76:24: note: ‘long long int l [5010]’ previously declared here
   76 | int colcnt[N], col[N], l[N], val[N];
      |                        ^
answer.code:335:30: error: redefinition of ‘long long int val [5010]’
  335 | int colcnt[N], col[N], l[N], val[N];
      |                              ^~~
answer.code:76:30: note: ‘long long int val [5010]’ previously declared here
   76 | int colcnt[N], col[N], l[N], val[N];
      |                              ^~~
answer.code:337:8: error: redefinition of ‘int main()’
  337 | signed main()
      |        ^~~~
answer.code:78:8: note: ‘int main()’ previously defined here
   78 | signed main()
      |        ^~~~
answer.code:392:11: error: redefinition of ‘const long long int inf’
  392 | const int inf = 0x3f3f3f3f3f3f;
      |           ^~~
answer.code:4:11: note: ‘const long long int inf’ previously defined here
    4 | const int inf = 0x3f3f3f3f3f3f;
      |           ^~~
answer.code:393:11: error: redefinitio...