#35228 (C++11) No.238 Mr. K's Another Gift

• 問題: No.238 Mr. K's Another Gift
• ユーザー: vain0
• 提出日時: 2015-07-05 22:55:07
• 言語: C++11 (gcc 11.4.0)
• 結果: WA
• 実行時間: -
• コード長: 1,420 bytes
• コンパイル時間: 503 ms
• コンパイル使用メモリ: 78,956 KB
• 実行使用メモリ: 5,376 KB
• 最終ジャッジ日時: 2024-07-07 23:34:14
• 合計ジャッジ時間: 2,176 ms
• ジャッジサーバーID （参考情報）: judge5 / judge1

入力	結果	実行時間; 実行使用メモリ
testcase_00	AC	1 ms; 5,248 KB
testcase_01	AC	1 ms; 5,376 KB
testcase_02	AC	2 ms; 5,376 KB
testcase_03	AC	2 ms; 5,376 KB
testcase_04	WA	-
testcase_05	AC	3 ms; 5,376 KB
testcase_06	WA	-
testcase_07	AC	4 ms; 5,376 KB
testcase_08	AC	3 ms; 5,376 KB
testcase_09	AC	3 ms; 5,376 KB
testcase_10	AC	1 ms; 5,376 KB
testcase_11	AC	1 ms; 5,376 KB
testcase_12	AC	2 ms; 5,376 KB
testcase_13	AC	2 ms; 5,376 KB
testcase_14	AC	3 ms; 5,376 KB
testcase_15	AC	3 ms; 5,376 KB
testcase_16	AC	4 ms; 5,376 KB
testcase_17	AC	3 ms; 5,376 KB
testcase_18	AC	3 ms; 5,376 KB
testcase_19	AC	3 ms; 5,376 KB
testcase_20	AC	1 ms; 5,376 KB
testcase_21	AC	1 ms; 5,376 KB
testcase_22	AC	1 ms; 5,376 KB
testcase_23	AC	1 ms; 5,376 KB
testcase_24	AC	2 ms; 5,376 KB
testcase_25	AC	1 ms; 5,376 KB
testcase_26	AC	4 ms; 5,376 KB
testcase_27	AC	3 ms; 5,376 KB
testcase_28	AC	3 ms; 5,376 KB
testcase_29	AC	4 ms; 5,376 KB
testcase_30	AC	1 ms; 5,376 KB
testcase_31	AC	1 ms; 5,376 KB
testcase_32	AC	2 ms; 5,376 KB
testcase_33	AC	2 ms; 5,376 KB
testcase_34	AC	2 ms; 5,376 KB
testcase_35	AC	3 ms; 5,376 KB
testcase_36	AC	3 ms; 5,376 KB
testcase_37	AC	3 ms; 5,376 KB
testcase_38	AC	3 ms; 5,376 KB
testcase_39	AC	3 ms; 5,376 KB
testcase_40	AC	1 ms; 5,376 KB
testcase_41	AC	2 ms; 5,376 KB
testcase_42	AC	2 ms; 5,376 KB

コンパイルメッセージ

main.cpp: In function ‘int main()’:
main.cpp:57:27: warning: overflow in conversion from ‘std::__cxx11::basic_string<char>::size_type’ {aka ‘long unsigned int’} to ‘int’ changes value from ‘18446744073709551615’ to ‘-1’ [-Woverflow]
   57 |         int pos = string::npos;
      |                   ~~~~~~~~^~~~

ソースコード

#include <cassert>
#include <functional>
#include <set>
#include <ctime>
#include <cmath>
#include <climits>
#include <cstring>
#include <string>
#include <queue>
#include <map>
#include <vector>
#include <algorithm>
#include <iostream>
#include <cstdio>
#ifndef ONLINE_JUDGE //POJ
# include <complex>
# include <random>
# include <array>
# define mkt make_tuple
# define empb emplace_back
#endif
#ifdef _LOCAL
# include "for_local.h"
#endif
using namespace std;
typedef unsigned int uint; typedef long long ll; typedef unsigned long long ull;
#define repi(_I, _B, _E) for(int _I = (_B); (_I) < (_E); ++ (_I))
#define rep(_I, _N) for(int _I = 0; (_I) < (_N); ++ (_I))
#define mkp make_pair
#define all(_X) (_X).begin(), (_X).end()


string src;

bool palindromize(int i, int ri, int cntInsert, int& pos, char& ch)
{
	while ( i <= ri ) {
		if ( src[i] != src[ri] ) {
			if ( cntInsert > 0 ) {
				if ( palindromize(i, ri - 1, cntInsert - 1, pos, ch) ) { pos = i; ch = src[ri]; return true; }
				if ( palindromize(i + 1, ri, cntInsert - 1, pos, ch) ) { pos = ri + 1; ch = src[i]; return true; }
			}
			return false;
		}
		++i;
		--ri;
	}
	if ( i > ri ) { pos = i; ch = 'a'; }
	return true;
}

signed main()
{
	cin >> src;

	int pos = string::npos;
	char ch = '\0';

	if ( palindromize(0, src.size() - 1, 1, pos, ch) ) {
		src.insert(pos, 1, ch);
		cout << src << endl;
	} else {
		cout << "NA" << endl;
	}
	return 0;
}