結果
問題 | No.1617 Palindrome Removal |
ユーザー |
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提出日時 | 2021-07-22 21:31:26 |
言語 | C++17 (gcc 13.3.0 + boost 1.87.0) |
結果 |
AC
|
実行時間 | 24 ms / 2,000 ms |
コード長 | 1,396 bytes |
コンパイル時間 | 1,880 ms |
コンパイル使用メモリ | 193,936 KB |
最終ジャッジ日時 | 2025-01-23 06:11:25 |
ジャッジサーバーID (参考情報) |
judge5 / judge3 |
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ファイルパターン | 結果 |
---|---|
sample | AC * 4 |
other | AC * 20 |
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 - 1; i >= b; i--)#define rng(a) a.begin(), a.end()#define rrng(a) a.rbegin(), a.rend()#define eb emplace_back#define pb push_back#define fi first#define se second#define pvec(a) for (int i = 0; i < a.size(); i++) cout << a[i] << " "; cout << '\n'#define dbwt(a) cout << fixed << setprecision(15) << a << '\n'using namespace std;using ll = long long;void wt() {cout << endl;}template<class T, class U>bool chmin(T& a, U b) {if (a > b) {a = b; return 1;} return 0;}template<class T, class U>bool chmax(T& a, U b) {if (a < b) {a = b; return 1;} return 0;}template<class T, class U>long long llceil(T a, U b) {return (long long)(a + b - 1) / b;}template<class H, class...T>void wt(H&& h, T&&... t){cout<<h<<" "; wt(forward<T>(t)...);}//-------------------------------------------------------------------------------------//int main() {string S;cin >> S;int N = S.size();bool kaibun = true;rep (i, 0, N / 2) {if (S[i] != S[N - i - 1]) kaibun = false;}bool allsame = *min_element(rng(S)) == *max_element(rng(S));if (!kaibun) wt(N);else if (allsame) {if (N % 2 == 1) wt(-1);else wt(0);}else {if (N == 3 && S[0] == S[2]) wt(-1);else wt(N - 2);}return 0;}