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QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#880874 | #3299. Advertisement Matching | December456 | WA | 0ms | 9956kb | C++17 | 3.7kb | 2025-02-03 22:15:38 | 2025-02-03 22:15:39 |
Judging History
answer
#include <algorithm>
#include <cstdio>
#define ls(o) o * 2
#define rs(o) o * 2 + 1
constexpr int MAXN = 250000 + 2;
constexpr long long LINF = 1000000000000000000ll;
int a[MAXN], b[MAXN], p[MAXN], s1[MAXN];
bool vis[MAXN];
long long s2[MAXN];
class FenwickTree {
public:
int n, t[MAXN << 1];
void init(int _n, int v) {
n = _n;
for (int i = 1; i <= n + 1; i ++) {
t[i] = v;
}
}
void add(int x, int v) {
for (x ++; x <= n + 1; x += x & -x) {
t[x] += v;
}
}
int query(int x) {
int ret = 0;
for (x ++; x; x &= x - 1) {
ret += t[x];
}
return ret;
}
} fenTree;
class SegmentTree {
public:
int n;
long long t[MAXN << 2];
void pushUp(int o) {
long long val = std::min(t[o << 1], t[o << 1 | 1]);
t[o << 1] -= val;
t[o << 1 | 1] -= val;
t[o] += val;
}
void init(int _n, int m) {
for (n = 1; n <= _n + 1; n <<= 1);
for (int i = 1; i <= _n; i ++) {
t[i + n + 1] = t[i + n] + p[i];
}
for (int i = 0; i <= _n; i ++) {
t[i + n + 1] += s2[_n - i]
+ (long long){m - s1[_n - i]} * (_n - i);
}
for (int i = n; i; i --) {
pushUp(i);
}
}
void add(int l, int r, int v) {
if (l > r) {
return;
}
for (l += n, r += n + 2; l ^ r ^ 1;
pushUp(l >>= 1), pushUp(r >>= 1)) {
if (~l & 1) {
t[l ^ 1] += v;
}
if (r & 1) {
t[r ^ 1] += v;
}
}
while (l >>= 1) {
pushUp(l);
}
}
long long query(int l, int r) {
long long ansL = LINF, ansR = LINF;
for (l += n, r += n + 2; l ^ r ^ 1;
ansL += t[l >>= 1], ansR += t[r >>= 1]) {
if (~l & 1) {
ansL = std::min(ansL, t[l ^ 1]);
}
if (r & 1) {
ansR = std::min(ansR, t[r ^ 1]);
}
}
ansL = std::min(ansL, ansR);
while (l >>= 1) {
ansL += t[l];
}
return ansL;
}
} segTree;
int main() {
int n, m, q;
scanf("%d%d", &n, &m);
long long sumA = 0;
for (int i = 1; i <= n; i ++) {
scanf("%d", &a[i]);
sumA += a[p[i] = i];
vis[a[i]] = true;
}
for (int i = 1; i <= m; i ++) {
scanf("%d", &b[i]);
s1[b[i]] ++;
s2[b[i]] += b[i];
}
for (int i = 1; i <= n; i ++) {
s1[i] += s1[i - 1];
s2[i] += s2[i - 1];
}
for (int i = 0, j = 0; i < MAXN; i ++) {
if (vis[i]) {
p[++ j] = i;
}
}
segTree.init(n, m);
fenTree.init((MAXN - 2) << 1, 0);
for (int i = 1; i <= n; i ++) {
fenTree.add(a[i], 1);
}
scanf("%d", &q);
while (q --) {
int op, x;
scanf("%d%d", &op, &x);
if (op == 1) {
segTree.add(fenTree.query(a[x]), n, 1);
fenTree.add(a[x], -1);
fenTree.add(++ a[x], 1);
sumA ++;
}
if (op == 2) {
fenTree.add(a[x], -1);
fenTree.add(-- a[x], 1);
segTree.add(fenTree.query(a[x]), n, -1);
sumA --;
}
if (op == 3) {
segTree.add(0, n - (++ b[x]), 1);
}
if (op == 4) {
segTree.add(0, n - (b[x] --), -1);
}
putchar('0' ^ (sumA == segTree.query(0, n)));
putchar('\n');
}
return 0;
}
Details
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Test #1:
score: 100
Accepted
time: 0ms
memory: 9952kb
input:
5 5 1 5 2 4 3 3 3 3 3 3 5 4 2 3 5 2 2 1 1 1 4
output:
0 1 1 1 0
result:
ok 5 lines
Test #2:
score: -100
Wrong Answer
time: 0ms
memory: 9956kb
input:
100 100 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 1...
output:
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
result:
wrong answer 1st lines differ - expected: '1', found: '0'