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Submission #806991

# Submission time Handle Problem Language Result Execution time Memory
806991 2023-08-04T12:02:13 Z MODDI Election (BOI18_election) C++14
28 / 100
 3000 ms 1148 KB 
#include <bits/stdc++.h>
using namespace std;
#define mp make_pair
#define pb push_back
typedef long long ll;
typedef pair<int,int> pii;
typedef pair<ll, ll> pll;
typedef vector<int> vi;
typedef vector<ll> vl;
const int maxn = 500005;
int n;
string s;
int main()
{
    cin >> n >> s;
    s = '#' + s;
    int q;
    cin >> q;
    while (q--)
    {
        int l, r;
        cin >> l >> r;
        vector<bool> gone(n + 5, false);
        int c = 0;
        int t = 0;
        for (int i = l; i <= r; ++i)
        {
            if (s[i] == 'C')
            {
                c++;
            }
            else
            {
                if (t + 1 <= c)
                {
                    ++t;
                }
                else
                {
                    gone[i] = true;
                }
            }
        }
        c = 0;
        t = 0;
        for (int i = r; i >= l; --i)
        {
            if (s[i] == 'C')
            {
                ++c;
            }
            else if (gone[i] == false)
            {
                if (t + 1 <= c)
                {
                    ++t;
                }
                else
                {
                    gone[i] = true;
                }
            }
        }
        int ans = 0;
        for (int i = l; i <= r; ++i)
        {
            ans += gone[i];
        }
        cout << ans << '\n';
    }
 
    return 0;
}

Subtask #1
28.0 / 28.0

# Verdict Execution time Memory Grader output
1 Correct 12 ms 332 KB Output is correct
2 Correct 8 ms 212 KB Output is correct
3 Correct 8 ms 308 KB Output is correct
4 Correct 8 ms 312 KB Output is correct
5 Correct 9 ms 340 KB Output is correct

Subtask #2
0 / 54.0

# Verdict Execution time Memory Grader output
1 Correct 12 ms 332 KB Output is correct
2 Correct 8 ms 212 KB Output is correct
3 Correct 8 ms 308 KB Output is correct
4 Correct 8 ms 312 KB Output is correct
5 Correct 9 ms 340 KB Output is correct
6 Execution timed out 3048 ms 1148 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 332 KB Output is correct
2 Correct 8 ms 212 KB Output is correct
3 Correct 8 ms 308 KB Output is correct
4 Correct 8 ms 312 KB Output is correct
5 Correct 9 ms 340 KB Output is correct
6 Execution timed out 3048 ms 1148 KB Time limit exceeded
7 Halted 0 ms 0 KB -