#include <iostream>
#include <algorithm>
#include <vector>
#include <map>
#include <set>
#include <unordered_map>
#include <unordered_set>
#include <queue>
#include <deque>
#include <stack>
#include <cmath>
#include <math.h>
#include <array>
#include <random>
#include <bitset>
#include <climits>
#include <cstring>
// #include <ext/pb_ds/assoc_container.hpp>
// #include <ext/pb_ds/tree_policy.hpp>
using namespace std;
// using namespace __gnu_pbds;
// template <class x>
// using ordered_set = tree<x, null_type, less<x>, rb_tree_tag, tree_order_statistics_node_update>;
typedef pair<int, int> ipair;
#define endl '\n'
#define mod 1000000007
#define INF 0x3f3f3f3f
#pragma GCC optimize("O3,Ofast,unroll-loops")
#pragma GCC target("avx2,sse3,sse4,avx")
static inline int read()
{
int x = 0;char ch = getchar();
while (ch < '0' || ch>'9') ch = getchar();
while (ch >= '0' && ch <= '9') x = (x << 3) + (x << 1) + (ch ^ 48), ch = getchar();
return x;
}
static inline void print(const int &x) {
if (x > 9)print(x / 10);
putchar('0' + x % 10);
}
int di = 0;
map<int, int> asd;
bool cmp(array<int, 3> a, array<int, 3> b)
{
if(a[0] / di < b[0] / di) return 1;
else if(a[0] / di > b[0] / di) return 0;
else
{
if(a[1] > b[1]) return 0;
else return 1;
}
}
int main()
{
cin.tie(0) -> sync_with_stdio(0);
int n, q;
cin >> n >> q;
di = sqrt(n);
int list[n];
for(int i = 0;i < n;cin >> list[i++]);
array<int, 3> qe[q];
for(int i = 0;i < q;i++)
{
cin >> qe[i][0] >> qe[i][1];
qe[i][2] = i;
}
sort(qe, qe + q,cmp);
int cnt = 0;
int ans[q], l = 0, r = -1;
for(int i = 0;i < q;i++)
{
while(l < qe[i][0])
{
asd[list[l]]--;
if(asd[list[l]] == 1) cnt--;
else if(asd[list[l]] == 2) cnt++;
l++;
}
while(l > qe[i][0])
{
l--;
asd[list[l]]++;
if(asd[list[l]] == 3) cnt--;
else if(asd[list[l]] == 2) cnt++;
}
while(r < qe[i][1])
{
r++;
asd[list[r]]++;
if(asd[list[r]] == 3) cnt--;
else if(asd[list[r]] == 2) cnt++;
}
while(r > qe[i][1])
{
asd[list[r]]--;
if(asd[list[r]] == 1) cnt--;
else if(asd[list[r]] == 2) cnt++;
r--;
}
ans[qe[i][2]] = cnt;
}
for(auto i : ans) cout << i << " ";
return 0;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Incorrect |
0 ms |
348 KB |
Output isn't correct |
2 |
Incorrect |
1 ms |
348 KB |
Output isn't correct |
3 |
Incorrect |
2 ms |
348 KB |
Output isn't correct |
4 |
Incorrect |
18 ms |
556 KB |
Output isn't correct |
5 |
Incorrect |
1413 ms |
2392 KB |
Output isn't correct |
6 |
Incorrect |
1765 ms |
2520 KB |
Output isn't correct |
7 |
Execution timed out |
5027 ms |
4176 KB |
Time limit exceeded |
8 |
Execution timed out |
5048 ms |
6224 KB |
Time limit exceeded |
9 |
Execution timed out |
5057 ms |
8276 KB |
Time limit exceeded |
10 |
Execution timed out |
5085 ms |
10060 KB |
Time limit exceeded |