oj.uz

Submission #62778

# Submission time Handle Problem Language Result Execution time Memory
62778 2018-07-30T03:28:57 Z jjwdi0 None (KOI18_matrix) C++11
29 / 100
 141 ms 3568 KB 
#include <bits/stdc++.h>
#define ROOT 450
using namespace std;
using pr = pair<int, int>;
using tr = pair<int, pr>;
using ll = long long;

int R, N, ans;
pr A[200005];
tr B[200005];
vector<int> v;
int comp[200005], comp_y[200005];
vector<int> comp2[ROOT];

struct seg_tree {
    int tree[ROOT*4], base;
    void init(int x) { for(base=1; base<x; base<<=1); for(int i=1; i<=base*2; i++) tree[i] = 0; }
    void update(int x, int y) {
        x += base - 1;
        tree[x] = y, x /= 2;
        while(x) tree[x] = max(tree[x*2], tree[x*2+1]), x /= 2;
    }
    int RMQ(int s, int e) {
        s += base - 1, e += base - 1;
        int res = 0;
        while(s < e) {
            if(s & 1) res = max(res, tree[s++]);
            if(!(e & 1)) res = max(res, tree[e--]);
            s >>= 1, e >>= 1;
        }
        if(s == e) res = max(res, tree[s]);
        return res;
    }
} S[ROOT];

vector<tr> bucket[ROOT];

int main() {
    scanf("%d %d", &R, &N);
    if(R == 2) {
        for(int i=1; i<=N; i++) scanf("%d", &A[i].first);
        for(int i=1; i<=N; i++) scanf("%d", &A[i].second);
        sort(A+1, A+N+1);
        for(int i=1; i<=N; i++) {
            auto it = lower_bound(v.begin(), v.end(), A[i].second);
            if(it == v.end()) v.push_back(A[i].second);
            else *it = A[i].second;
        }
        printf("%d\n", v.size());
    }
    else {
        assert(N < ROOT);
        for(int i=0; i<=N/ROOT; i++) S[i].init(N / ROOT + 1);
        for(int i=1; i<=N; i++) scanf("%d", &B[i].first);
        for(int i=1; i<=N; i++) scanf("%d", &B[i].second.first);
        for(int i=1; i<=N; i++) scanf("%d", &B[i].second.second);
        sort(B+1, B+N+1);
        for(int i=1; i<=N; i++) comp[i] = B[i].second.first;
        sort(comp+1, comp+N+1);
        for(int i=1; i<=N; i++) B[i].second.first = (int)( lower_bound(comp+1, comp+N+1, B[i].second.first) - comp );
        for(int i=1; i<=N; i++) comp[i] = B[i].second.second;
        sort(comp+1, comp+N+1);
        for(int i=1; i<=N; i++) B[i].second.second = (int)( lower_bound(comp+1, comp+N+1, B[i].second.second) - comp );

        int ans = 0;

        for(int i=1; i<=N; i++) comp2[i/ROOT].push_back(B[i].second.second);
        for(int i=0; i<=N/ROOT; i++) sort(comp2[i].begin(), comp2[i].end());
        for(int i=1; i<=N; i++) comp_y[i] = (int)(lower_bound(comp2[i/ROOT].begin(), comp2[i/ROOT].end(), B[i].second.second) - comp2[i/ROOT].begin()) + 1;

        for(int i=1; i<=N; i++) {
            int idx = B[i].second.first / ROOT;
            int mx = 1;
            for(int j=0; j<idx; j++) {
                mx = max(mx, S[j].RMQ(1, (int)(upper_bound(comp2[j].begin(), comp2[j].end(), B[i].second.second) - comp2[j].begin()) ) + 1);
            }
            for(auto it : bucket[idx]) {
                if(it.second.first < B[i].second.first && it.second.second < B[i].second.second) mx = max(mx, it.first + 1);
            }
            bucket[idx].push_back(tr(mx, B[i].second));
            S[idx].update(comp_y[i], mx);
            ans = max(ans, mx);
            printf("%d\n", mx);
        }
        printf("%d\n", ans);
    }
}

Compilation message

matrix.cpp: In function 'int main()':
matrix.cpp:49:32: warning: format '%d' expects argument of type 'int', but argument 2 has type 'std::vector<int>::size_type {aka long unsigned int}' [-Wformat=]
         printf("%d\n", v.size());
                        ~~~~~~~~^
matrix.cpp:39:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d %d", &R, &N);
     ~~~~~^~~~~~~~~~~~~~~~~
matrix.cpp:41:38: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         for(int i=1; i<=N; i++) scanf("%d", &A[i].first);
                                 ~~~~~^~~~~~~~~~~~~~~~~~~
matrix.cpp:42:38: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         for(int i=1; i<=N; i++) scanf("%d", &A[i].second);
                                 ~~~~~^~~~~~~~~~~~~~~~~~~~
matrix.cpp:54:38: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         for(int i=1; i<=N; i++) scanf("%d", &B[i].first);
                                 ~~~~~^~~~~~~~~~~~~~~~~~~
matrix.cpp:55:38: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         for(int i=1; i<=N; i++) scanf("%d", &B[i].second.first);
                                 ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~
matrix.cpp:56:38: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         for(int i=1; i<=N; i++) scanf("%d", &B[i].second.second);
                                 ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 504 KB Output is correct
2 Correct 7 ms 600 KB Output is correct
3 Correct 7 ms 624 KB Output is correct
4 Correct 8 ms 624 KB Output is correct
5 Correct 9 ms 624 KB Output is correct
6 Correct 7 ms 796 KB Output is correct
7 Correct 8 ms 796 KB Output is correct

Subtask #2
0 / 9.0

# Verdict Execution time Memory Grader output
1 Runtime error 3 ms 808 KB Execution killed with signal 11 (could be triggered by violating memory limits)
2 Halted 0 ms 0 KB -

Subtask #3
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 504 KB Output is correct
2 Correct 7 ms 600 KB Output is correct
3 Correct 7 ms 624 KB Output is correct
4 Correct 8 ms 624 KB Output is correct
5 Correct 9 ms 624 KB Output is correct
6 Correct 7 ms 796 KB Output is correct
7 Correct 8 ms 796 KB Output is correct
8 Correct 110 ms 2372 KB Output is correct
9 Correct 111 ms 2400 KB Output is correct
10 Correct 134 ms 2784 KB Output is correct
11 Correct 114 ms 2784 KB Output is correct
12 Correct 124 ms 2784 KB Output is correct
13 Correct 108 ms 2996 KB Output is correct
14 Correct 141 ms 2996 KB Output is correct
15 Correct 104 ms 2996 KB Output is correct
16 Correct 109 ms 3568 KB Output is correct
17 Correct 109 ms 3568 KB Output is correct
18 Correct 124 ms 3568 KB Output is correct
19 Correct 122 ms 3568 KB Output is correct
20 Correct 115 ms 3568 KB Output is correct

Subtask #4
0 / 62.0

# Verdict Execution time Memory Grader output
1 Runtime error 3 ms 808 KB Execution killed with signal 11 (could be triggered by violating memory limits)
2 Halted 0 ms 0 KB -