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Submission #1099357

# Submission time Handle Problem Language Result Execution time Memory
1099357 2024-10-11T08:39:43 Z Zflop Circle Passing (EGOI24_circlepassing) C++14
31 / 100
 199 ms 9656 KB 
#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define all(x) x.begin(),x.end()
#define sor(x) sort(all(x))
#define pi pair<int,int>
#define vi vector<int>
#define pb push_back
int N,M,Q;
void solve() {
    cin >> N >> M >> Q;
    vi bestfriend{0};
    for (int i = 0; i < M;++i) {
        int b = 0;
        cin >> b;
        bestfriend.pb(b + 1);
        bestfriend.pb(b + N + 1);
        }

    auto Do = [&] (int a,int b) {
        if (a > 2 * N)
            a -= 2 * N;
        if (a > b)
            swap(a,b);
        int ans = (int)1e9;
        ans = b - a;
        ans = min(ans,a + 2 * N - b);
        return ans;
    };
    sor(bestfriend);
    while(Q--) {
        int a,b; cin >> a >> b;
        ++a,++b;
        if (a > b)
            swap(a,b);
        int ans = (int)1e9;
        ans = b - a;
        ans = min(ans,a + 2 * N - b);
        int l = 1,r = bestfriend.size() - 1;
        int p = -1;
        while (l <= r) {
            int mid = (l + r) / 2;
            //cout << mid << ' ' << bestfriend[mid] << '\n';
            if (bestfriend[mid] <= a) {
                p = mid;
                l = mid + 1;
            } else {
                r = mid - 1;
            }
        }
        if(p == -1) {
            ans = min(ans,Do(bestfriend.back() - N,b) + a + 1 + 2 * N - bestfriend.back());
            ans = min(ans,Do(bestfriend[1] + N,b) + bestfriend[1] - a + 1);
        }
        if(p != -1){
            ans = min({ans,Do(bestfriend[p],b) + a - bestfriend[p],Do(bestfriend[p + 1],b) + bestfriend[p + 1] - a});
            ans = min(ans,Do(N + bestfriend[p],b) + a - bestfriend[p] + 1);
            ans = min(ans,Do(N + bestfriend[p + 1],b) + bestfriend[p + 1] - a + 1);
        }
        cout << ans << "\n";
    }
}

main(){
    solve();
}

Compilation message

Main.cpp:64:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   64 | main(){
      | ^~~~

Subtask #1
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 26 ms 348 KB Output is correct
2 Correct 25 ms 348 KB Output is correct
3 Correct 27 ms 616 KB Output is correct
4 Correct 0 ms 344 KB Output is correct
5 Correct 44 ms 564 KB Output is correct
6 Correct 30 ms 604 KB Output is correct
7 Correct 33 ms 860 KB Output is correct
8 Correct 33 ms 860 KB Output is correct
9 Correct 33 ms 860 KB Output is correct
10 Correct 37 ms 880 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 1 ms 348 KB Output is correct

Subtask #2
0.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Incorrect 2 ms 348 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #3
0.0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Incorrect 2 ms 348 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #4
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 30 ms 600 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 136 ms 6652 KB Output is correct
4 Correct 68 ms 2204 KB Output is correct
5 Correct 32 ms 780 KB Output is correct
6 Correct 30 ms 604 KB Output is correct
7 Correct 29 ms 600 KB Output is correct
8 Correct 30 ms 600 KB Output is correct
9 Correct 29 ms 600 KB Output is correct
10 Correct 30 ms 600 KB Output is correct
11 Correct 29 ms 604 KB Output is correct
12 Correct 29 ms 836 KB Output is correct
13 Correct 30 ms 604 KB Output is correct
14 Correct 30 ms 852 KB Output is correct
15 Correct 122 ms 4444 KB Output is correct
16 Correct 95 ms 4284 KB Output is correct
17 Correct 199 ms 9656 KB Output is correct
18 Correct 190 ms 9656 KB Output is correct
19 Correct 0 ms 344 KB Output is correct

Subtask #5
0.0 / 27.0

# Verdict Execution time Memory Grader output
1 Correct 26 ms 348 KB Output is correct
2 Correct 25 ms 348 KB Output is correct
3 Correct 27 ms 616 KB Output is correct
4 Correct 0 ms 344 KB Output is correct
5 Correct 44 ms 564 KB Output is correct
6 Correct 30 ms 604 KB Output is correct
7 Correct 33 ms 860 KB Output is correct
8 Correct 33 ms 860 KB Output is correct
9 Correct 33 ms 860 KB Output is correct
10 Correct 37 ms 880 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 1 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Incorrect 2 ms 348 KB Output isn't correct
15 Halted 0 ms 0 KB -