CODE FESTIVAL 2017 qual C

Submission #1703109

Source codeソースコード

#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

Task問題 C - Inserting 'x'
User nameユーザ名 ecasdqina
Created time投稿日時
Language言語 C++14 (GCC 5.4.1)
Status状態 AC
Score得点 400
Source lengthソースコード長 762 Byte
File nameファイル名
Exec time実行時間 5 ms
Memory usageメモリ使用量 512 KB

Test case

Set

Set name Score得点 / Max score Cases
Sample - 0_00.txt,0_01.txt,0_02.txt,0_03.txt
All 400 / 400 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

Test case

Case name Status状態 Exec time実行時間 Memory usageメモリ使用量
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