Submission #3433986


Source Code Expand

#include<bits/stdc++.h>
using namespace std;
int main(){
  string s;cin>>s;
  vector<pair<string,int> > p;
  for(int i=0;i<s.size();i++){
    if(s[i]!='x'){
      p.push_back(make_pair(s.substr(i,1),i));
    }
  }
  int l=p.size();
  if(l==0){
    cout<<0<<endl;
    return 0;
  }
  if(l%2==1){
    for(int i=0;i<(l-1)/2;i++){
      if(p[i].first!=p[l-i-1].first){
        cout<<-1<<endl;
        return 0;
      }
    }
    int m=p[(l-1)/2].second;
    int f=0,sec=0;
    vector<int>fi={},se={};
    for(int i=0;i<=m;i++){
      if(s[i]=='x'){
        f++;
      }
      else{
        fi.push_back(f);
        f=0;
      }
    }
    for(int i=s.size()-1;i>=m;i--){
      if(s[i]=='x'){
        sec++;
      }
      else{
        se.push_back(sec);
        sec=0;
      }
    }
    int ans=0;
    for(int i=0;i<fi.size();i++){
      ans+=abs(fi[i]-se[i]);
    }
    cout<<ans<<endl;
  }
  else if(l%2==0){
    for(int i=0;i<l/2;i++){
      if(p[i].first!=p[l-i-1].first){
        cout<<-1<<endl;
        return 0;
      }
    }
    int m=p[l/2-1].second;
    int f=0,sec=0;
    vector<int>fi={},se={};
    for(int i=0;i<=m;i++){
      if(s[i]=='x'){
        f++;
      }
      else{
        fi.push_back(f);
        f=0;
      }
    }
    for(int i=s.size()-1;i>=s.size()-m-1;i--){
      if(s[i]=='x'){
        sec++;
      }
      else{
        se.push_back(sec);
        sec=0;
      }
    }
    int ans=0;
    for(int i=0;i<fi.size();i++){
      ans+=abs(fi[i]-se[i]);
    }
    cout<<ans<<endl;
  }
}
  
    

Submission Info

Submission Time
Task C - Inserting 'x'
User ttttan
Language C++14 (GCC 5.4.1)
Score 0
Code Size 1597 Byte
Status WA
Exec Time 14 ms
Memory 7284 KB

Judge Result

Set Name Sample All
Score / Max Score 0 / 0 0 / 400
Status
AC × 4
AC × 32
WA × 1
Set Name Test Cases
Sample 0_00.txt, 0_01.txt, 0_02.txt, 0_03.txt
All 0_00.txt, 0_01.txt, 0_02.txt, 0_03.txt, 1_00.txt, 1_01.txt, 1_02.txt, 1_03.txt, 1_04.txt, 1_05.txt, 1_06.txt, 1_07.txt, 1_08.txt, 1_09.txt, 1_10.txt, 1_11.txt, 1_12.txt, 1_13.txt, 1_14.txt, 1_15.txt, 1_16.txt, 1_17.txt, 1_18.txt, 1_19.txt, 1_20.txt, 1_21.txt, 1_22.txt, 1_23.txt, 1_24.txt, 1_25.txt, 1_26.txt, 1_27.txt, 1_28.txt
Case Name Status Exec Time Memory
0_00.txt AC 1 ms 256 KB
0_01.txt AC 1 ms 256 KB
0_02.txt AC 1 ms 256 KB
0_03.txt AC 1 ms 256 KB
1_00.txt AC 1 ms 256 KB
1_01.txt AC 1 ms 256 KB
1_02.txt AC 1 ms 256 KB
1_03.txt AC 1 ms 256 KB
1_04.txt AC 1 ms 256 KB
1_05.txt AC 1 ms 256 KB
1_06.txt AC 14 ms 7284 KB
1_07.txt AC 4 ms 512 KB
1_08.txt AC 14 ms 7284 KB
1_09.txt AC 4 ms 512 KB
1_10.txt AC 5 ms 512 KB
1_11.txt AC 5 ms 512 KB
1_12.txt AC 11 ms 5496 KB
1_13.txt AC 4 ms 512 KB
1_14.txt AC 4 ms 512 KB
1_15.txt AC 5 ms 512 KB
1_16.txt AC 4 ms 512 KB
1_17.txt AC 5 ms 512 KB
1_18.txt AC 4 ms 512 KB
1_19.txt AC 5 ms 512 KB
1_20.txt AC 4 ms 512 KB
1_21.txt WA 7 ms 2044 KB
1_22.txt AC 7 ms 1916 KB
1_23.txt AC 8 ms 2940 KB
1_24.txt AC 8 ms 2940 KB
1_25.txt AC 10 ms 3832 KB
1_26.txt AC 9 ms 3320 KB
1_27.txt AC 14 ms 7156 KB
1_28.txt AC 13 ms 6516 KB