answer.code: In function ‘void PRINT(int)’:
answer.code:11:5: error: ‘printf’ was not declared in this scope
   11 |     printf("%d ",c[p]);
      |     ^~~~~~
answer.code:1:1: note: ‘printf’ is defined in header ‘<cstdio>’; did you forget to ‘#include <cstdio>’?
  +++ |+#include <cstdio>
    1 | 
answer.code: In member function ‘void Seg::chg(int, node, int, int, int)’:
answer.code:37:14: error: ‘min’ was not declared in this scope; did you mean ‘mid’?
   37 |         t[p]=min(t[lp],t[rp]);
      |              ^~~
      |              mid
answer.code: In member function ‘node Seg::qry(int, int, int, int, int)’:
answer.code:44:16: error: ‘min’ was not declared in this scope; did you mean ‘mid’?
   44 |         return min(qry(x,mid,l,mid,lp),qry(mid+1,y,mid+1,r,rp));
      |                ^~~
      |                mid
answer.code: In function ‘void solve()’:
answer.code:48:5: error: ‘scanf’ was not declared in this scope
   48 |     scanf("%d%d%d%d",&n,&m,&k,&w);
      |     ^~~~~
answer.code:51:5: error: ‘sort’ was not declared in this scope; did you mean ‘short’?
   51 |     sort(a+1,a+n+1);
      |     ^~~~
      |     short
answer.code:55:27: error: ‘unique’ was not declared in this scope
   55 |     sort(c+1,c+cnt+1);cnt=unique(c+1,c+cnt+1)-c-1;
      |                           ^~~~~~
answer.code:2:12: error: ‘lower_bound’ was not declared in this scope
    2 | #define lb lower_bound
      |            ^~~~~~~~~~~
answer.code:60:11: note: in expansion of macro ‘lb’
   60 |         p=lb(b+1,b+m+1,c[i])-b;
      |           ^~
answer.code:2:12: error: ‘lower_bound’ was not declared in this scope
    2 | #define lb lower_bound
      |            ^~~~~~~~~~~
answer.code:83:11: note: in expansion of macro ‘lb’
   83 |         p=lb(a+1,a+n+1,c[l])-a;
      |           ^~
answer.code:88:28: error: ‘puts’ was not declared in this scope
   88 |     if(tmp.val==inf)return puts("-1"),void();
      |                            ^~~~
answer.code:89:5: error: ‘printf’ was not declared in this scope
   89 |     printf("%d\n",tmp.val);
      |     ^~~~~~
answer.code:89:5: note: ‘printf’ is defined in header ‘<cstdio>’; did you forget to ‘#include <cstdio>’?
answer.code:91:5: error: ‘puts’ was not declared in this scope
   91 |     puts("");
      |     ^~~~
answer.code: In function ‘int main()’:
answer.code:101:11: error: ‘scanf’ was not declared in this scope
  101 |     int t;scanf("%d",&t);
      |           ^~~~~