제출 #823900

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
823900		drdilyor	비스킷 담기 (IOI20_biscuits)	C++17	0 / 100	1 ms	596 KiB

biscuits

#include<bits/stdc++.h>
#include "biscuits.h"
using namespace std;
using ll = long long;

const int T = 120;
long long count_tastiness(long long x, std::vector<long long> a) {
    assert(x == 1);
    int k = a.size();
    a.resize(T+1);
    ll cur = 0;
    for (int i = 0; i <= T; i++) {
        if (a[i] > 1) {
            ll d = (a[i] - 1) / 2;
            a[i] -= d;
            a[i+1] += d;
        }
    }
    // for (ll i : a) cout << i << ' '; cout << endl;
    vector<array<ll, 2>> ans(T+2);
    ans[0] = {1, 0};
    for (int i = 0; i <= T; i++) {
        if (a[i]) {
            ans[i+1][0] = ans[i][0] + ans[i][1];
            ans[i+1][1] = ans[i][0] + ans[i][1];
        } else {
            ans[i+1][0] = ans[i][0] + ans[i][1];
            ans[i+1][1] = 0;
            for (int j = i-1; j >= 0; j--) {
                if (a[j] == 0) break;
                if (a[j] == 2) {
                    ans[i+1][1] += ans[j + 1][0];
                }
            }
        }
    }
    // for (ll i : ans) cout << i << ' '; cout << endl;
    return ans[T+1][0] + ans[T+1][1];
}

컴파일 시 표준 에러 (stderr) 메시지

biscuits.cpp: In function 'long long int count_tastiness(long long int, std::vector<long long int>)':
biscuits.cpp:9:9: warning: unused variable 'k' [-Wunused-variable]
    9 |     int k = a.size();
      |         ^
biscuits.cpp:11:8: warning: unused variable 'cur' [-Wunused-variable]
   11 |     ll cur = 0;
      |        ^~~

• Subtask 1: 0 / 9
• Subtask 2: 0 / 12
• Subtask 3: 0 / 21
• Subtask 4: 0 / 35
• Subtask 5: 0 / 23