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ID题目提交者结果用时内存语言文件大小提交时间测评时间
#722077#5543. The Only Modexuxuxuxuxu#WA 1ms5640kbC++143.3kb2024-11-07 17:42:042024-11-07 17:42:07

Judging History

你现在查看的是最新测评结果

  • [2024-11-07 17:42:07]
  • 评测
  • 测评结果:WA
  • 用时:1ms
  • 内存:5640kb
  • [2024-11-07 17:42:04]
  • 提交

answer

#include <cstdio>
#include <iostream>
#include <algorithm>
#include <vector>
#include <map>

using std::cin;
using std::cout;

using i64 = long long;

const int nx = 1e5;

int n;
int a[nx + 5];

int bid[4], b[4][nx + 5];
int r0[nx + 5], r1[nx + 5], r2[nx + 5];
bool vis[nx + 5];
int ans[nx + 5];

struct BIT {
    int lim;
    int c[nx * 2 + 10];
    
    int lb(int x) {
        return (x & (-x));
    }

    void upd(int x, int k) {
        while (x <= lim) {
            c[x] = std::min(c[x], k);
            x += lb(x);
        }
    }
    void cov(int x, int k) {
        while (x <= lim) {
            c[x] = k;
            x += lb(x);
        }
    }
    int qry(int x) {
        int res = n + 1;
        while (x) {
            res = std::min(res, c[x]);
            x -= lb(x);
        }
        return res;
    }
}t0;

void cdq1(int l, int r) {
    if (l >= r) return;
    int mid = (l + r) >> 1;
    cdq1(l, mid), cdq1(mid + 1, r);
    
    int pl = l, pr = mid + 1, p1 = l - 1, mi = n + 1;
    while (pl <= mid && pr <= r) {
        if (b[2][r1[pl]] < b[2][r1[pr]]) {
            r2[++p1] = r1[pl++];
            if (!vis[r2[p1]]) mi = std::min(mi, r2[p1]);
        }else {
            r2[++p1] = r1[pr++];
            if (vis[r2[p1]])
                ans[r2[p1]] = std::min(ans[r2[p1]], mi);
        }
    }
    while (pl <= mid) r2[++p1] = r1[pl++];
    while (pr <= r) {
        r2[++p1] = r1[pr++];
        if (vis[r2[p1]])
            ans[r2[p1]] = std::min(ans[r2[p1]], mi);
    }
    for (int i = l; i <= r; ++i) {
        r1[i] = r2[i];
        if (!vis[r1[i]]) t0.cov(b[3][r1[i]] + 1 + n + 5, n + 1);
    }
}

void cdq0(int l, int r) {
    if (l >= r) return;
    int mid = (l + r) >> 1;
    cdq0(l, mid), cdq0(mid + 1, r);
    
    int pl = l, pr = mid + 1, p1 = l - 1;
    while (pl <= mid && pr <= r) {
        if (b[1][r0[pl]] < b[1][r0[pr]]) r1[++p1] = r0[pl++], vis[r1[p1]] = false;
        else r1[++p1] = r0[pr++], vis[r1[p1]] = true;
    }
    while (pl <= mid) {
        r1[++p1] = r0[pl++];
        vis[r1[p1]] = false;
    }
    while (pr <= r) {
        r1[++p1] = r0[pr++];
        vis[r1[p1]] = true;
    }
    for (int i = l; i <= r; ++i) r0[i] = r1[i];
    cdq1(l, r);
}

int main() {
    std::ios::sync_with_stdio(false);

    cin >> n;
    for (int i = 1; i <= n; ++i) cin >> a[i], r0[i] = i, ans[i] = n + 1;

    t0.lim = n + n + 6;
    for (int i = 0; i <= t0.lim; ++i) t0.c[i] = n + 1;
    for (int k = 0; k < 4; ++k) {
        int bidn = 0;
        for (int i = 0; i < 4; ++i) if (i != k) bid[i] = bidn++;
        for (int i = 1; i <= n; ++i) {
            for (int j = 0; j < 3; ++j) b[j][i] = 0;
            if (a[i] == k) {
                for (int j = 0; j < 3; ++j) b[j][i] = 1;
            }else b[bid[a[i]]][i] = -1;
        }
        for (int i = 0; i < 3; ++i) {
            for (int j = 1; j <= n; ++j) b[i][j] += b[i][j - 1];
        }
        std::sort(r0, r0 + n + 1, [&](int x, int y) {
            return b[0][x] < b[0][y];
        });
        
        cdq0(0, n);

;        int res = 0;
        for (int i = 1; i <= n; ++i) {
            if (ans[i] <= i) res = std::max(res, i - ans[i]);
            ans[i] = n + 1;
        }
        cout << res << " ";
    }
    return 0;
}

詳細信息

Test #1:

score: 0
Wrong Answer
time: 1ms
memory: 5640kb

input:

7
1 2 2 0 3 0 3

output:

4 1 5 5 

result:

wrong answer 1st lines differ - expected: '4 1 5 3', found: '4 1 5 5 '