oj.uz

Submission #653093

# Submission time Handle Problem Language Result Execution time Memory
653093 2022-10-25T16:31:23 Z Vladth11 Fish (IOI08_fish) C++14
4 / 100
 595 ms 31960 KB 
#include <iostream>
#include <vector>
#include <set>
#include <unordered_set>
#include <algorithm>

#define debug(x) cerr << #x << " " << x << "\n"
#define debugs(x) cerr << #x << " " << x << " "

#pragma GCC optimize("Ofast")

using namespace std;
typedef long long ll;
typedef pair <int, int> pii;

const int bSize = 11;
const int bits = 17;
const int NMAX = 500001;

int MOD;

class AINT {
public:
    int aint[NMAX * 4];
    void init() {
        for(int i = 0; i < NMAX * 4; i++)
            aint[i] = 1;
    }
    void add(int node, int st, int dr, int l, int x) {
        if(st == dr) {
            aint[node] += x;
            aint[node] = max(aint[node], 1);
            return;
        }
        int mid = (st + dr) / 2;
        if(l <= mid) {
            add(node * 2, st, mid, l, x);
        } else {
            add(node * 2 + 1, mid + 1, dr, l, x);
        }
        aint[node] = aint[node * 2] * aint[node * 2 + 1];
        aint[node] %= MOD;
    }
    void update(int node, int st, int dr, int l, int x) {
        if(st == dr) {
            aint[node] = x;
            //aint[node] = max(aint[node], 1);
            return;
        }
        int mid = (st + dr) / 2;
        if(l <= mid) {
            update(node * 2, st, mid, l, x);
        } else {
            update(node * 2 + 1, mid + 1, dr, l, x);
        }
        aint[node] = aint[node * 2] * aint[node * 2 + 1];
        aint[node] %= MOD;
    }
} aint, banned;

int imp[NMAX];
int col[NMAX];
int maxi[NMAX];
pii v[NMAX];

int main() {
    ios_base::sync_with_stdio(false);
    cin.tie(0);
    cout.tie(0);
    int n, k, i;
    cin >> n >> k >> MOD;
    for(i = 1; i <= n; i++) {
        cin >> v[i].first >> v[i].second;
    }
    sort(v + 1, v + n + 1);
    for(i = n; i >= 1; i--) {
        if(!col[v[i].second]) {
            imp[i] = 1;
        }
        col[v[i].second]++;
    }
    aint.init();
    banned.init();
    for(i = 1; i <= n; i++){
        maxi[i] = col[i];
        aint.update(1, 1, n, i, col[i] + 1);
        banned.update(1, 1, n, i, col[i] + 1);
    }
    int dr = n + 1, st = n;
    ll rez = 0;
    for(i = n; i >= 1; i--){
        while(st >= 1 && v[st].first * 2 > v[i].first){
            aint.add(1, 1, n, v[st].second, -1);
            banned.add(1, 1, n, v[st].second, -1);
            col[v[st].second]--;
            st--;
        }
        if(i == n){
            for(int j = 1; j <= n; j++){
                maxi[j] = col[j];
            }
        }
        if(imp[i]){
            if(v[i].first * 2 > v[n].first && i != n && maxi[v[i].second] == col[v[i].second]){
                aint.update(1, 1, n, v[i].second, 1);
                rez += aint.aint[1];
                aint.update(1, 1, n, v[i].second, col[v[i].second] + 1);
                banned.add(1, 1, n, v[i].second, -1);
                rez %= MOD;
            }
            rez += banned.aint[1];
            rez %= MOD;
            banned.update(1, 1, n, v[i].second, 1);
        }
    }
    cout << rez;
    return 0;
}

Compilation message

fish.cpp: In function 'int main()':
fish.cpp:89:9: warning: unused variable 'dr' [-Wunused-variable]
   89 |     int dr = n + 1, st = n;
      |         ^~

Subtask #1
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 15956 KB Output is correct

Subtask #2
0 / 4.0

# Verdict Execution time Memory Grader output
1 Incorrect 7 ms 15956 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #3
0 / 4.0

# Verdict Execution time Memory Grader output
1 Incorrect 7 ms 16000 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #4
0 / 4.0

# Verdict Execution time Memory Grader output
1 Incorrect 7 ms 15956 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #5
0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 9 ms 15956 KB Output is correct
2 Incorrect 8 ms 15956 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #6
0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 9 ms 15956 KB Output is correct
2 Incorrect 433 ms 21964 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #7
0 / 6.0

# Verdict Execution time Memory Grader output
1 Incorrect 8 ms 15956 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #8
0 / 6.0

# Verdict Execution time Memory Grader output
1 Incorrect 10 ms 15956 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #9
0 / 6.0

# Verdict Execution time Memory Grader output
1 Incorrect 183 ms 18280 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #10
0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 11 ms 16040 KB Output is correct
2 Incorrect 14 ms 16184 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #11
0 / 7.0

# Verdict Execution time Memory Grader output
1 Incorrect 266 ms 19572 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #12
0 / 7.0

# Verdict Execution time Memory Grader output
1 Incorrect 402 ms 22488 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #13
0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 251 ms 20704 KB Output is correct
2 Incorrect 474 ms 22060 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #14
0 / 5.0

# Verdict Execution time Memory Grader output
1 Incorrect 403 ms 21724 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #15
0 / 5.0

# Verdict Execution time Memory Grader output
1 Incorrect 484 ms 22468 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #16
0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 409 ms 21072 KB Output is correct
2 Incorrect 573 ms 31960 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #17
0 / 5.0

# Verdict Execution time Memory Grader output
1 Incorrect 568 ms 23388 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #18
0 / 5.0

# Verdict Execution time Memory Grader output
1 Incorrect 447 ms 23268 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #19
0 / 5.0

# Verdict Execution time Memory Grader output
1 Incorrect 595 ms 24564 KB Output isn't correct
2 Halted 0 ms 0 KB -