제출 #1203202

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1203202		SSKMF	Calvinball championship (CEOI15_teams)	C++20	0 / 100	1 ms	328 KiB

teams

#include <bits/stdc++.h>
using namespace std;

const int mod(1000007);
int sir[10001];

int main ()
{
    ios :: sync_with_stdio(false);
    cin.tie(NULL); cout.tie(NULL);

    int lungime;
    cin >> lungime;

    for (int indice = 1 ; indice <= lungime ; indice++)
        { cin >> sir[indice]; }

    int rezultat = 1;
    for (int indice = lungime , putere = 1 ; indice > 1 ; indice--)
    {
        if ((putere <<= 1) >= mod)
            { putere -= mod; }

        if (sir[indice] != sir[indice - 1]) {
            if ((rezultat += putere - 1) >= mod)
                { rezultat -= mod; }
        }
    }

    cout << rezultat;
    return 0;
}

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