提出 #29759211

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ソースコード 拡げる

// #include <atcoder/all>
// using namespace atcoder;
// using mint = modint998244353;
// using mint = modint1000000007;
#include <bits/stdc++.h>
#define all(v) (v).begin(), (v).end()
#define rall(v) (v).rbegin(), (v).rend()
#define rep(i,n) for (int i = 0; i < (n); ++i)
#define rep2(i,k,n) for (int i = (k); i < (n); ++i)
using namespace std;
using ll = long long;
// using P = pair<ll,ll>;
using P = pair<int,int>;
using vint = vector<int>;
using vll = vector<ll>;
using vvint = vector<vector<int>>;
using vvll = vector<vector<ll>>;

// const ll INF = (ll)2e18+9;
const int INF = (int)2e9+7;
// const ll MOD = (ll)1e9+9;
template<typename T>
void chmin(T &a, T b) { a = min(a, b); }
template<typename T>
void chmax(T &a, T b) { a = max(a, b); }

template<typename T>
void print(vector<T> v) {
    int n = v.size();
    rep(i,n) {
        if (i == 0) cout << v[i];
        else cout << ' ' << v[i];
    }
    cout << endl;
}

void solve() {
    int n;
    cin >> n;
    string s;
    cin >> s;

    int cur = 0;
    string ans = "";
    while (cur < n) {
        if (s[cur] != 'A' && s[cur] != 'B') {
            ans.push_back(s[cur]);
            cur++;
            continue;
        }
        int numa = 0, numb = 0;
        while (cur < n && (s[cur] == 'A' || s[cur] == 'B')) {
            numa += s[cur] == 'A';
            numb += s[cur] == 'B';
            cur++;
        }

        numa += numb / 2;
        numb %= 2;
        ans += string(numa, 'A');
        ans += string(numb, 'B');
    }
    cout << ans << endl;
}

int main() {
    solve();
    return 0;
}

提出情報

ジャッジ結果