answer.code: In function ‘void solve()’:
answer.code:5:23: error: ‘n’ was not declared in this scope; did you mean ‘yn’?
    5 |         scanf("%d%d",&n,&k);B=sqrt(n);
      |                       ^
      |                       yn
answer.code:5:26: error: ‘k’ was not declared in this scope
    5 |         scanf("%d%d",&n,&k);B=sqrt(n);
      |                          ^
answer.code:5:29: error: ‘B’ was not declared in this scope
    5 |         scanf("%d%d",&n,&k);B=sqrt(n);
      |                             ^
answer.code:6:42: error: ‘a’ was not declared in this scope
    6 |         for(int i=1;i<=n;i++)scanf("%d",&a[i]);
      |                                          ^
answer.code:8:17: error: ‘bel’ was not declared in this scope
    8 |                 bel[i]=(i-1)/B+1;
      |                 ^~~
answer.code:9:21: error: ‘L’ was not declared in this scope
    9 |                 if(!L[x])L[x]=i;R[x]=i;
      |                     ^
answer.code:9:33: error: ‘R’ was not declared in this scope
    9 |                 if(!L[x])L[x]=i;R[x]=i;
      |                                 ^
answer.code: In function ‘int main()’:
answer.code:13:20: warning: ignoring return value of ‘int scanf(const char*, ...)’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
   13 |         int T;scanf("%d",&T);
      |               ~~~~~^~~~~~~~~