Submission #639093

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
639093	2022-09-08 14:36:00	nguyentu	K blocks (IZhO14_blocks)	C++14	0 / 100	1 ms	324 KiB

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// https://oj.uz/problem/view/IZhO14_blocks
#include <bits/stdc++.h>
using namespace std;
#define ii pair<int , int>  
#define iv pair<ii , ii>
#define iii pair<int , ii>
#define fi first
#define se second
#define int long long
const int inf = 1e18 + 7;
const int N = 1e5 + 7;
const int MOD = 1e9 + 7;
main() {
    ios_base::sync_with_stdio(0); cin.tie(NULL); cout.tie(NULL);
    int n , k; cin >> n >> k;
    vector<int> a(n + 1) , L(n + 1);
    a[0] = inf;
    deque<int> dq; dq.push_back(0);
    for (int i = 1 ; i <= n ;i ++) {
        cin >> a[i];
        while (!dq.empty() && a[dq.back()] <= a[i]) dq.pop_back();
        L[i] = dq.back() + 1;
        dq.push_back(i);
    }
    vector<vector<int>> f(n + 1 , vector<int> (k + 1 , inf));
    // nhan xet ta co f[i][j] <= f[i + 1][j] <= f[i + 2][j] .. <= f[n][j]
 
 
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Compilation message (stderr)

blocks.cpp:17:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   17 | main() {
      | ^~~~

• Subtask 1: 0 / 14
• Subtask 2: 0 / 18
• Subtask 3: 0 / 21
• Subtask 4: 0 / 47