Submission #660470

#	Time	Username	Problem	Language	Result	Execution time	Memory
660470		Danilo21	Xylophone (JOI18_xylophone)	C++14	100 / 100	96 ms	588 KiB

xylophone

#include <bits/stdc++.h>
#include "xylophone.h"

#define ll long long
#define ld long double
#define pb push_back
#define fi first
#define se second
#define en '\n'
#define sp ' '
#define tb '\t'
#define ri(n) int n; cin >> n
#define rl(n) ll n; cin >> n
#define rs(s) string s; cin >> s
#define rc(c) char c; cin >> c
#define rv(v) for (auto &x : v) cin >> x
#define pven(v) for (auto x : v) cout << x << en
#define pv(v) for (auto x : v) cout << x << sp; cout << en
#define all(v) v.begin(), v.end()
#define rall(v) v.rbegin(), v.rend()
#define yes cout << "YES" << en
#define no cout << "NO" << en
#define smin(a, b) a = min(a, b)
#define smax(a, b) a = max(a, b)
#define ssort(a, b) if (a < b) swap(a, b)
#define bitcnt(a) (__builtin_popcountll(a))
#define bithigh(a) (63-__builtin_clzll(a))
#define lg bithigh
#define highpow(a) (1LL << (ll)lg(a))

using namespace std;

const ll LINF = 4e18;
const int mxN = 1e6+10, INF = 2e9;
ll n, m, a[mxN], b[2][mxN];

void solve(int N){

    for (int i = 2; i <= N; i++) b[0][i] = query(i-1, i);
    for (int i = 3; i <= N; i++) b[1][i] = query(i-2, i);
    a[1] = 0; a[2] = b[0][2];
    for (int i = 3; i <= N; i++){
        int t1 = (b[0][i-1] + b[0][i] == b[1][i] ? 1 : -1);
        int t2 = (a[i-1] > a[i-2] ? 1 : -1);
        a[i] = a[i-1] + t1*t2*b[0][i];
    }
    array<int, 2> idx = {1, 1};
    for (int i = 2; i <= N; i++){
        if (a[i] < a[idx[0]]) idx[0] = i;
        if (a[i] > a[idx[1]]) idx[1] = i;
    }
    if (idx[0] > idx[1]){
        for (int i = 1; i <= N; i++)
            a[i] *= -1;
        swap(idx[0], idx[1]);
    }
    int d = 1-a[idx[0]];
    for (int i = 1; i <= N; i++)
        answer(i, a[i]+d);
}

• Subtask 1: 11 / 11
• Subtask 2: 36 / 36
• Subtask 3: 53 / 53