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Submission #364736

# Submission time Handle Problem Language Result Execution time Memory
364736 2021-02-09T20:50:17 Z nicolaalexandra Money (IZhO17_money) C++14
0 / 100
 1 ms 364 KB 
#include <bits/stdc++.h>
#define DIM 1000010
using namespace std;

int aib[DIM],dp[DIM],v[DIM];
int n,i,maxi,val;

void update (int p, int val){
    for (;p<=maxi;p+=(p&-p))
        aib[p] += val;
}

int query (int p){
    int sol = 0;
    for (;p;p-=(p&-p))
        sol += aib[p];
    return sol;
}

int main (){

    //ifstream cin ("date.in");
    //ofstream cout ("date.out");

    cin>>n;
    for (i=1;i<=n;i++){
        cin>>v[i];
        maxi = max (maxi,v[i]);
    }

    i = 1;
    while (v[i] > v[i-1]){
        dp[i] = 1;
        i++;
    }

    int st = i;
    for (;i<=n;i++){
        if (v[i] < v[i-1]){
            st = i;
            dp[i] = dp[i-1] + 1;
        } else {

            do{
                val = query (v[i]) - query (v[st]-1);
                if (val){
                    update (v[st],1);
                    st++;
                }

            } while (val);

            dp[i] = dp[st-1] + 1;
        }
    }

    cout<<dp[n];

    return 0;
}

Subtask #1
0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Incorrect 1 ms 364 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #2
0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Incorrect 1 ms 364 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #3
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Incorrect 1 ms 364 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #4
0 / 55.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Incorrect 1 ms 364 KB Output isn't correct
3 Halted 0 ms 0 KB -