Submission #66959657

---

Source Code Expand

#include <bits/stdc++.h>
#define fs first
#define se second
using namespace std;
#define For(s,e) \
  for(int i=s;i<=e;++i)
#define ForR(s,e) \ 
  for(int i=s;i>=e;--i)
#define FOR(n) \
  for(int i=0;i<n;++i)
#define FORR(n) \ 
  for(int i=n-1;i>=0;--i)
#define IN(a,n) \
  FOR(n){\
    cin>>a[i];\
  }

struct node{
  string s = "";
  node*p = NULL;
};
int main(int /* argc */, char** /* argv */) {
  int n,m;
  cin>>n>>m;
  node* a[n+1];
  memset(a,0,sizeof(a));
  for(int i=0;i<m;++i){
    int q,p;
    cin>>q>>p;
    --p;
    if(q==1){
      a[p]=a[n];
    }else if(q==2){
      string ss;
      node*pointer=new node();
      cin>>pointer->s;
      pointer->p=a[p];
      a[p]=pointer;
    } else{
      a[n]=a[p];
    }
  }
  node*p=a[n];
  stack<node*>ps;
  while(p!=NULL){
    ps.emplace(p);
    p=p->p;
  }
  while(ps.size()){
    p=ps.top();
    ps.pop();
    cout<<p->s;
  }
  
  cout<<endl;
  
  return 0;
}

Submission Info

Compile Error

./Main.cpp:7:20: warning: backslash and newline separated by space [-Wbackslash-newline-escape]
#define ForR(s,e) \ 
                   ^
./Main.cpp:11:18: warning: backslash and newline separated by space [-Wbackslash-newline-escape]
#define FORR(n) \ 
                 ^
2 warnings generated.

Judge Result