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IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#352404#6427. Just Another Game of StonesPorNPtreeRE 0ms75552kbC++143.6kb2024-03-13 10:50:522024-03-13 10:50:53

Judging History

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  • [2024-03-13 10:50:53]
  • 评测
  • 测评结果:RE
  • 用时:0ms
  • 内存:75552kb
  • [2024-03-13 10:50:52]
  • 提交

answer

#include <bits/stdc++.h>

using namespace std;

const int N = 2e5 + 5;

int a[N], mn[1 << 19], mn2[1 << 19], cnt[1 << 19], lazy[1 << 19], fxor[1 << 19], z[30][1 << 19];

void addTag(int k, int x)
{
    assert(mn2[k] >= x);
    if (cnt[x] & 1) {
        fxor[k] ^= mn[k] ^ x;
    }
    for (int i = 0; i < 30; ++i) {
        if ((mn[k] >> i) & 1) {
            z[i][k] -= cnt[k];
        }
        if ((x >> i) & 1) {
            z[i][k] += cnt[k];
        }
    }
    mn[k] = x;
    lazy[k] = x;
    return;
}

void pushdown(int k)
{
    if (lazy[k]) {
        if (mn[k << 1] < lazy[k]) {
            addTag(k << 1, lazy[k]);
        }
        if (mn[k << 1 | 1] < lazy[k]) {
            addTag(k << 1 | 1, lazy[k]);
        }
        lazy[k] = 0;
    }
    return;
}

void pushup(int k)
{
    fxor[k] = fxor[k << 1] ^ fxor[k << 1 | 1];
    for (int i = 0; i < 30; ++i) {
        z[i][k] = z[i][k << 1] + z[i][k << 1 | 1];
    }
    if (mn[k << 1] < mn[k << 1 | 1]) {
        mn[k] = mn[k << 1];
        cnt[k] = cnt[k << 1];
        mn2[k] = min(mn2[k << 1], mn[k << 1 | 1]);
    } else if (mn[k << 1] > mn[k << 1 | 1]) {
        mn[k] = mn[k << 1 | 1];
        cnt[k] = cnt[k << 1 | 1];
        mn2[k] = min(mn2[k << 1 | 1], mn[k << 1]);
    } else {
        mn[k] = mn[k << 1];
        cnt[k] = cnt[k << 1] + cnt[k << 1 | 1];
        mn2[k] = min(mn2[k << 1], mn2[k << 1 | 1]);
    }
    return;
}

void build(int k, int l, int r)
{
    lazy[k] = 0;
    if (l == r) {
        mn[k] = a[l];
        mn2[k] = 1 << 30;
        cnt[k] = 1;
        fxor[k] = a[l];
        for (int i = 0; i < 30; ++i) {
            z[i][k] = (a[l] >> i) & 1;
        }
        return;
    }
    int mid = (l + r) >> 1;
    build(k << 1, l, mid);
    build(k << 1 | 1, mid + 1, r);
    pushup(k);
    return;
}

void modify(int k, int l, int r, int x, int y, int v)
{
    if (l > y || r < x || mn[k] >= v) {
        return;
    }
    int mid = (l + r) >> 1;
    if (l >= x && r <= y) {
        if (mn2[k] >= x) {
            addTag(k, v);
        } else {
            assert(l != r);
            pushdown(k);
            modify(k << 1, l, mid, x, y, v);
            modify(k << 1 | 1, mid + 1, r, x, y, v);
            pushup(k);
        }
        return;
    }
    pushdown(k);
    modify(k << 1, l, mid, x, y, v);
    modify(k << 1 | 1, mid + 1, r, x, y, v);
    pushup(k);
    return;
}

int f[30];

int query(int k, int l, int r, int x, int y)
{
    if (l > y || r < x) {
        return 0;
    }
    if (l >= x && r <= y) {
        for (int i = 0; i < 30; ++i) {
            f[i] += z[i][k];
        }
        return fxor[k];
    }
    pushdown(k);
    int mid = (l + r) >> 1;
    return query(k << 1, l, mid, x, y) ^
           query(k << 1 | 1, mid + 1, r, x, y);
}

signed main()
{
    int n, q;
    scanf("%d%d", &n, &q);
    for (int i = 1; i <= n; ++i) {
        scanf("%d", &a[i]);
    }
    build(1, 1, n);
    while (q--) {
        int opt, l, r, x;
        scanf("%d%d%d%d", &opt, &l, &r, &x);
        if (opt == 1) {
            if (x) {
                modify(1, 1, n, l, r, x);
            }
        } else {
            for (int i = 0; i < 30; ++i) {
                f[i] = 0;
            }
            int fx = query(1, 1, n, l, r) ^ x;
            if (!fx) {
                puts("0");
            } else {
                int k = 31 - __builtin_clz(fx);
                assert(k < 30);
                printf("%d\n", f[k] + ((x >> k) & 1));
            }
        }
    }
    return 0;
}

Details

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Test #1:

score: 100
Accepted
time: 0ms
memory: 75552kb

input:

5 4
1 2 1 4 1
2 1 3 1
1 2 4 3
2 2 4 4
2 1 4 4

output:

1
0
3

result:

ok 3 number(s): "1 0 3"

Test #2:

score: -100
Runtime Error

input:

200000 200000
962352030 173642520 1008864183 74920228 684681800 500911321 1001441054 257633652 185843534 59168654 317689197 731348417 123888883 708119712 340055368 876566011 980078202 969174443 814012870 715639041 596932238 173757742 314504576 1045746913 740811577 570187156 999816627 12441059 122507...

output:


result: