oj.uz

Submission #967236

# Submission time Handle Problem Language Result Execution time Memory
967236 2024-04-21T14:43:42 Z jadai007 Alternating Heights (CCO22_day1problem1) C++14
25 / 25
 607 ms 11960 KB 
#include<bits/stdc++.h>
 
using namespace std;
 
int n,k,q, arr[3030], vis[3030], ans[3030], ck;
vector<int> vc[3030];
 
int check(int u){
    vis[u] = 1;
    for (int v : vc[u]) if(vis[v] == 1 || !vis[v] && check(v)) return 1;
    vis[u] = 2;
    return 0;
}
 
int main(){
    cin.tie(nullptr)->sync_with_stdio(false);
    cin >> n >> k >> q;
    for(int i = 1; i<=n; ++i) cin >> arr[i];
    for(int i = 1; i<=n; ++i){
        int l = i, r = n;
        ans[i] = i;
        while(l <= r){
            int mid = (l + r) >> 1, ck = 1;
            memset(vis, 0, sizeof(vis));
            for(int j = 1; j<=k; ++j) vc[j].clear();
            for(int j = i; j<mid; ++j){
                if(j&1) vc[arr[j+1]].push_back(arr[j]);
                else vc[arr[j]].push_back(arr[j+1]);
            }
            for(int j = i; j<=mid; ++j){
                if(!vis[arr[j]] && check(arr[j])){
                    ck = 0;
                    break;
                }
            }
            if(ck){
                ans[i] = mid;
                l = mid+1;
            }
            else r = mid - 1;
        }
    }
    while(q--){
        int l, r; cin >> l >> r;
        ans[l] >= r ? cout << "YES\n": cout << "NO\n";
    }
}

Compilation message

Main.cpp: In function 'int check(int)':
Main.cpp:10:51: warning: suggest parentheses around '&&' within '||' [-Wparentheses]
   10 |     for (int v : vc[u]) if(vis[v] == 1 || !vis[v] && check(v)) return 1;
      |                                           ~~~~~~~~^~~~~~~~~~~

Subtask #1
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 144 ms 10840 KB Output is correct
2 Correct 148 ms 10860 KB Output is correct
3 Correct 139 ms 10828 KB Output is correct
4 Correct 96 ms 6896 KB Output is correct
5 Correct 114 ms 8160 KB Output is correct
6 Correct 141 ms 10836 KB Output is correct
7 Correct 138 ms 10836 KB Output is correct
8 Correct 168 ms 10840 KB Output is correct
9 Correct 156 ms 11024 KB Output is correct
10 Correct 207 ms 11312 KB Output is correct
11 Correct 345 ms 11780 KB Output is correct
12 Correct 292 ms 11348 KB Output is correct

Subtask #2
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 126 ms 9644 KB Output is correct
2 Correct 114 ms 9660 KB Output is correct
3 Correct 124 ms 9668 KB Output is correct
4 Correct 138 ms 7784 KB Output is correct
5 Correct 108 ms 8388 KB Output is correct
6 Correct 131 ms 9584 KB Output is correct
7 Correct 119 ms 9552 KB Output is correct
8 Correct 116 ms 9604 KB Output is correct
9 Correct 122 ms 8016 KB Output is correct
10 Correct 165 ms 8648 KB Output is correct
11 Correct 127 ms 8544 KB Output is correct
12 Correct 0 ms 344 KB Output is correct

Subtask #3
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 167 ms 608 KB Output is correct
3 Correct 202 ms 608 KB Output is correct
4 Correct 16 ms 604 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 1 ms 348 KB Output is correct
7 Correct 122 ms 600 KB Output is correct
8 Correct 236 ms 608 KB Output is correct
9 Correct 315 ms 608 KB Output is correct
10 Correct 411 ms 604 KB Output is correct
11 Correct 447 ms 608 KB Output is correct
12 Correct 342 ms 604 KB Output is correct

Subtask #4
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 144 ms 10840 KB Output is correct
2 Correct 148 ms 10860 KB Output is correct
3 Correct 139 ms 10828 KB Output is correct
4 Correct 96 ms 6896 KB Output is correct
5 Correct 114 ms 8160 KB Output is correct
6 Correct 141 ms 10836 KB Output is correct
7 Correct 138 ms 10836 KB Output is correct
8 Correct 168 ms 10840 KB Output is correct
9 Correct 156 ms 11024 KB Output is correct
10 Correct 207 ms 11312 KB Output is correct
11 Correct 345 ms 11780 KB Output is correct
12 Correct 292 ms 11348 KB Output is correct
13 Correct 126 ms 9644 KB Output is correct
14 Correct 114 ms 9660 KB Output is correct
15 Correct 124 ms 9668 KB Output is correct
16 Correct 138 ms 7784 KB Output is correct
17 Correct 108 ms 8388 KB Output is correct
18 Correct 131 ms 9584 KB Output is correct
19 Correct 119 ms 9552 KB Output is correct
20 Correct 116 ms 9604 KB Output is correct
21 Correct 122 ms 8016 KB Output is correct
22 Correct 165 ms 8648 KB Output is correct
23 Correct 127 ms 8544 KB Output is correct
24 Correct 0 ms 344 KB Output is correct
25 Correct 0 ms 348 KB Output is correct
26 Correct 167 ms 608 KB Output is correct
27 Correct 202 ms 608 KB Output is correct
28 Correct 16 ms 604 KB Output is correct
29 Correct 1 ms 348 KB Output is correct
30 Correct 1 ms 348 KB Output is correct
31 Correct 122 ms 600 KB Output is correct
32 Correct 236 ms 608 KB Output is correct
33 Correct 315 ms 608 KB Output is correct
34 Correct 411 ms 604 KB Output is correct
35 Correct 447 ms 608 KB Output is correct
36 Correct 342 ms 604 KB Output is correct
37 Correct 360 ms 9044 KB Output is correct
38 Correct 300 ms 8672 KB Output is correct
39 Correct 141 ms 8392 KB Output is correct
40 Correct 104 ms 6816 KB Output is correct
41 Correct 109 ms 6992 KB Output is correct
42 Correct 282 ms 8772 KB Output is correct
43 Correct 417 ms 11856 KB Output is correct
44 Correct 264 ms 11592 KB Output is correct
45 Correct 607 ms 11960 KB Output is correct
46 Correct 536 ms 11820 KB Output is correct
47 Correct 597 ms 11868 KB Output is correct