Submission #1703109
Source Code Expand
#include <bits/stdc++.h> #define REP(i,a,b) for(int i=(a);i<(b);i++) #define RREP(i,a,b) for(int i=(a);i>=(b);i--) typedef long long ll; typedef long double ld; using namespace std; const int INF=1e9, MOD=1e9+7, around[]={0,1,1,-1,0,-1,1,0,0}; const ld PI=abs(acos(-1)); int c=0; string s; int main(){ cin >> s; int r=s.size()-1, l=0; while(1){ if(s[l]!=s[r]){ if(s[l]=='x') l++; else if(s[r]=='x') r--; else{ cout << -1 << endl; return 0; } }else{ l++; r--; } if(r<=l) break; } r=s.size()-1, l=0; while(1){ if(s[l]!=s[r]){ if(s[l]=='x') c++,l++; else if(s[r]=='x') c++,r--; }else{ l++; r--; } if(r<=l) break; } cout << c << endl; return 0; }
Submission Info
Submission Time | |
---|---|
Task | C - Inserting 'x' |
User | ecasdqina |
Language | C++14 (GCC 5.4.1) |
Score | 400 |
Code Size | 762 Byte |
Status | AC |
Exec Time | 5 ms |
Memory | 512 KB |
Judge Result
Set Name | Sample | All | ||||
---|---|---|---|---|---|---|
Score / Max Score | 0 / 0 | 400 / 400 | ||||
Status |
|
|
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 | 4 ms | 512 KB |
1_07.txt | AC | 4 ms | 512 KB |
1_08.txt | AC | 4 ms | 512 KB |
1_09.txt | AC | 4 ms | 512 KB |
1_10.txt | AC | 5 ms | 512 KB |
1_11.txt | AC | 4 ms | 512 KB |
1_12.txt | AC | 4 ms | 512 KB |
1_13.txt | AC | 4 ms | 512 KB |
1_14.txt | AC | 4 ms | 512 KB |
1_15.txt | AC | 4 ms | 512 KB |
1_16.txt | AC | 4 ms | 512 KB |
1_17.txt | AC | 4 ms | 512 KB |
1_18.txt | AC | 4 ms | 512 KB |
1_19.txt | AC | 4 ms | 512 KB |
1_20.txt | AC | 4 ms | 512 KB |
1_21.txt | AC | 5 ms | 512 KB |
1_22.txt | AC | 4 ms | 512 KB |
1_23.txt | AC | 5 ms | 512 KB |
1_24.txt | AC | 4 ms | 512 KB |
1_25.txt | AC | 5 ms | 512 KB |
1_26.txt | AC | 4 ms | 512 KB |
1_27.txt | AC | 4 ms | 512 KB |
1_28.txt | AC | 4 ms | 512 KB |