oj.uz

Submission #423522

# Submission time Handle Problem Language Result Execution time Memory
423522 2021-06-11T08:35:56 Z Theo830 Ancient Books (IOI17_books) C++17
50 / 100
 173 ms 35736 KB 
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
const ll INF = 1e9;
ll MOD = 998244353;
typedef pair<ll,ll> ii;
#define iii pair<int,int>
#define f(i,a,b) for(ll i = a;i < b;i++)
#define pb push_back
#define vll vector<ll>
#define F first
#define S second
#define all(x) (x).begin(), (x).end()
///I hope I will get uprating and don't make mistakes
///I will never stop programming
///sqrt(-1) Love C++
///Please don't hack me
///@TheofanisOrfanou Theo830
///Think different approaches (bs,dp,greedy,graphs,shortest paths,mst)
///Stay Calm
///Look for special cases
///Beware of overflow and array bounds
///Think the problem backwards
///Training
#include "books.h"
long long minimum_walk(std::vector<int> p, int s) {
    ll ans = 0;
    ll n = p.size();
    bool v[n] = {0};
    ll dist = 0;
    ll l[n],r[n];
    vector<ii>rang;
    f(i,0,n){
        if(p[i] != i && !v[i]){
            ll last = i;
            ll st = i;
            ll pos = p[i];
            v[i] = 1;
            l[st] = i,r[st] = pos;
            while(pos != st){
                l[st] = min(l[st],pos);
                r[st] = max(r[st],pos);
                v[pos] = 1;
                ans += abs(pos - last);
                last = pos;
                pos = p[pos];
            }
            ans += abs(pos - last);
            l[st] = min(l[st],pos);
            r[st] = max(r[st],pos);
            rang.pb(ii(l[st],r[st]));
        }
    }
    if(rang.empty()){
        return ans;
    }
    sort(all(rang));
    dist = rang[0].F;
    ll maxi = 0;
    f(i,0,(1LL * rang.size())-1){
        maxi = max(maxi,rang[i].S);
        if(maxi < rang[i+1].F){
            dist += rang[i+1].F - maxi;
        }
    }
    ans += 2 * dist;
    return ans;
}
/*
int main() {
    int n, s;
    assert(2 == scanf("%d %d", &n, &s));

    vector<int> p((unsigned) n);
    for(int i = 0; i < n; i++)
        assert(1 == scanf("%d", &p[(unsigned) i]));

    long long res = minimum_walk(p, s);
    printf("%lld\n", res);

    return 0;
}
*/
/*
4 0
0 2 3 1
*/

Compilation message

books.cpp: In function 'long long int minimum_walk(std::vector<int>, int)':
books.cpp:8:33: warning: comparison of integer expressions of different signedness: 'll' {aka 'long long int'} and 'long long unsigned int' [-Wsign-compare]
    8 | #define f(i,a,b) for(ll i = a;i < b;i++)
......
   60 |     f(i,0,(1LL * rang.size())-1){
      |       ~~~~~~~~~~~~~~~~~~~~~~~~~  
books.cpp:60:5: note: in expansion of macro 'f'
   60 |     f(i,0,(1LL * rang.size())-1){
      |     ^

Subtask #1
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 1 ms 204 KB Output is correct
7 Correct 0 ms 292 KB Output is correct
8 Correct 1 ms 204 KB Output is correct
9 Correct 1 ms 204 KB Output is correct
10 Correct 1 ms 204 KB Output is correct
11 Correct 1 ms 204 KB Output is correct
12 Correct 1 ms 204 KB Output is correct
13 Correct 1 ms 204 KB Output is correct
14 Correct 1 ms 204 KB Output is correct
15 Correct 1 ms 296 KB Output is correct
16 Correct 1 ms 204 KB Output is correct
17 Correct 1 ms 204 KB Output is correct
18 Correct 0 ms 204 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 1 ms 204 KB Output is correct
7 Correct 0 ms 292 KB Output is correct
8 Correct 1 ms 204 KB Output is correct
9 Correct 1 ms 204 KB Output is correct
10 Correct 1 ms 204 KB Output is correct
11 Correct 1 ms 204 KB Output is correct
12 Correct 1 ms 204 KB Output is correct
13 Correct 1 ms 204 KB Output is correct
14 Correct 1 ms 204 KB Output is correct
15 Correct 1 ms 296 KB Output is correct
16 Correct 1 ms 204 KB Output is correct
17 Correct 1 ms 204 KB Output is correct
18 Correct 0 ms 204 KB Output is correct
19 Correct 1 ms 204 KB Output is correct
20 Correct 1 ms 204 KB Output is correct
21 Correct 1 ms 296 KB Output is correct
22 Correct 1 ms 288 KB Output is correct
23 Correct 1 ms 204 KB Output is correct
24 Correct 1 ms 204 KB Output is correct
25 Correct 1 ms 204 KB Output is correct
26 Correct 1 ms 204 KB Output is correct
27 Correct 1 ms 204 KB Output is correct
28 Correct 1 ms 204 KB Output is correct
29 Correct 1 ms 288 KB Output is correct

Subtask #3
28.0 / 28.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 1 ms 204 KB Output is correct
7 Correct 0 ms 292 KB Output is correct
8 Correct 1 ms 204 KB Output is correct
9 Correct 1 ms 204 KB Output is correct
10 Correct 1 ms 204 KB Output is correct
11 Correct 1 ms 204 KB Output is correct
12 Correct 1 ms 204 KB Output is correct
13 Correct 1 ms 204 KB Output is correct
14 Correct 1 ms 204 KB Output is correct
15 Correct 1 ms 296 KB Output is correct
16 Correct 1 ms 204 KB Output is correct
17 Correct 1 ms 204 KB Output is correct
18 Correct 0 ms 204 KB Output is correct
19 Correct 1 ms 204 KB Output is correct
20 Correct 1 ms 204 KB Output is correct
21 Correct 1 ms 296 KB Output is correct
22 Correct 1 ms 288 KB Output is correct
23 Correct 1 ms 204 KB Output is correct
24 Correct 1 ms 204 KB Output is correct
25 Correct 1 ms 204 KB Output is correct
26 Correct 1 ms 204 KB Output is correct
27 Correct 1 ms 204 KB Output is correct
28 Correct 1 ms 204 KB Output is correct
29 Correct 1 ms 288 KB Output is correct
30 Correct 162 ms 31464 KB Output is correct
31 Correct 161 ms 31452 KB Output is correct
32 Correct 135 ms 31428 KB Output is correct
33 Correct 145 ms 35632 KB Output is correct
34 Correct 147 ms 35636 KB Output is correct
35 Correct 149 ms 35652 KB Output is correct
36 Correct 154 ms 35664 KB Output is correct
37 Correct 139 ms 32084 KB Output is correct
38 Correct 138 ms 31684 KB Output is correct
39 Correct 173 ms 31572 KB Output is correct
40 Correct 158 ms 31456 KB Output is correct
41 Correct 151 ms 31440 KB Output is correct
42 Correct 172 ms 31428 KB Output is correct
43 Correct 165 ms 35736 KB Output is correct

Subtask #4
0 / 20.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 204 KB 3rd lines differ - on the 1st token, expected: '3304', found: '2744'
2 Halted 0 ms 0 KB -

Subtask #5
0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 1 ms 204 KB Output is correct
7 Correct 0 ms 292 KB Output is correct
8 Correct 1 ms 204 KB Output is correct
9 Correct 1 ms 204 KB Output is correct
10 Correct 1 ms 204 KB Output is correct
11 Correct 1 ms 204 KB Output is correct
12 Correct 1 ms 204 KB Output is correct
13 Correct 1 ms 204 KB Output is correct
14 Correct 1 ms 204 KB Output is correct
15 Correct 1 ms 296 KB Output is correct
16 Correct 1 ms 204 KB Output is correct
17 Correct 1 ms 204 KB Output is correct
18 Correct 0 ms 204 KB Output is correct
19 Correct 1 ms 204 KB Output is correct
20 Correct 1 ms 204 KB Output is correct
21 Correct 1 ms 296 KB Output is correct
22 Correct 1 ms 288 KB Output is correct
23 Correct 1 ms 204 KB Output is correct
24 Correct 1 ms 204 KB Output is correct
25 Correct 1 ms 204 KB Output is correct
26 Correct 1 ms 204 KB Output is correct
27 Correct 1 ms 204 KB Output is correct
28 Correct 1 ms 204 KB Output is correct
29 Correct 1 ms 288 KB Output is correct
30 Correct 162 ms 31464 KB Output is correct
31 Correct 161 ms 31452 KB Output is correct
32 Correct 135 ms 31428 KB Output is correct
33 Correct 145 ms 35632 KB Output is correct
34 Correct 147 ms 35636 KB Output is correct
35 Correct 149 ms 35652 KB Output is correct
36 Correct 154 ms 35664 KB Output is correct
37 Correct 139 ms 32084 KB Output is correct
38 Correct 138 ms 31684 KB Output is correct
39 Correct 173 ms 31572 KB Output is correct
40 Correct 158 ms 31456 KB Output is correct
41 Correct 151 ms 31440 KB Output is correct
42 Correct 172 ms 31428 KB Output is correct
43 Correct 165 ms 35736 KB Output is correct
44 Incorrect 1 ms 204 KB 3rd lines differ - on the 1st token, expected: '3304', found: '2744'
45 Halted 0 ms 0 KB -