oj.uz

Submission #68569

# Submission time Handle Problem Language Result Execution time Memory
68569 2018-08-17T11:18:07 Z renatsj Election (BOI18_election) C++14
28 / 100
 3000 ms 1936 KB 
#include<bits/stdc++.h>
using namespace std;
int i,j,n,m,l,r,mas[500005],a[2],rez;
vector<int> k;
vector<int>::iterator it;
char c;
int main()
{
    cin.sync_with_stdio(0);
    cin.tie(0);
    cin >> n;
    i=0;
    while (i<n)
    {
        cin >> c;
        if (c=='C')
        {
            mas[i]=1;
        }
        i++;
    }
    cin >> m;
    i=0;
    while (i<m)
    {
        cin >> l >> r;
        l--;
        r--;
        j=l;
        a[0]=0;
        a[1]=0;
        k.clear();
        rez=0;
        while (j<=r)
        {
            a[mas[j]]++;
            if (a[1]<a[0])
            {
                a[mas[j]]--;
                k.push_back(j);
                rez++;
            }
            j++;
        }
        a[0]=0;
        a[1]=0;
        j=r;
        it=k.end();
        it--;
        while (j>=l)
        {
            if (k.empty()||j!=*it)
            {
                a[mas[j]]++;
                if (a[1]<a[0])
                {
                    a[mas[j]]--;
                    rez++;
                    //cout << j << "\n";
                }
            }
            else
            {
                k.pop_back();
                it=k.end();
                it--;
            }
            j--;
        }
        cout << rez << "\n";
        i++;
    }
    return 0;
}

Subtask #1
28.0 / 28.0

# Verdict Execution time Memory Grader output
1 Correct 12 ms 376 KB Output is correct
2 Correct 13 ms 496 KB Output is correct
3 Correct 11 ms 612 KB Output is correct
4 Correct 16 ms 712 KB Output is correct
5 Correct 14 ms 712 KB Output is correct

Subtask #2
0 / 54.0

# Verdict Execution time Memory Grader output
1 Correct 12 ms 376 KB Output is correct
2 Correct 13 ms 496 KB Output is correct
3 Correct 11 ms 612 KB Output is correct
4 Correct 16 ms 712 KB Output is correct
5 Correct 14 ms 712 KB Output is correct
6 Execution timed out 3013 ms 1936 KB Time limit exceeded
7 Halted 0 ms 0 KB -

Subtask #3
0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 12 ms 376 KB Output is correct
2 Correct 13 ms 496 KB Output is correct
3 Correct 11 ms 612 KB Output is correct
4 Correct 16 ms 712 KB Output is correct
5 Correct 14 ms 712 KB Output is correct
6 Execution timed out 3013 ms 1936 KB Time limit exceeded
7 Halted 0 ms 0 KB -