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답안 #390616

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
390616 2021-04-16T11:58:35 Z mehrdad_sohrabi 고대 책들 (IOI17_books) C++14
50 / 100
 759 ms 58416 KB 
#include <bits/stdc++.h>
#include "books.h"
using namespace std;
typedef long long int ll;
typedef complex<double> point;
typedef long double ld;
#define pb push_back
#define pii pair < ll , ll >
#define F first
#define S second
//#define endl '\n'
#define int long long
#define sync ios_base::sync_with_stdio(false);cin.tie(0);cout.tie(0)
#pragma GCC optimize("Ofast,no-stack-protector,unroll-loops,fast-math")
#define kill(x) return cout<<x<<'\n', 0;
const int N=1e6+10,inf=(ll)1e9;

ll vis[N];
pii seg[N*4];
void upd(ll nod,ll l,ll r,ll id,pii val){
    if (r-l==1){
        seg[nod]=val;
        return ;
    }
    ll mid=(r+l)/2;
    if (mid>id) upd(nod*2,l,mid,id,val);
    else upd(nod*2+1,mid,r,id,val);
    seg[nod].F=min(seg[nod*2].F,seg[nod*2+1].F);
    seg[nod].S=max(seg[nod*2].S,seg[nod*2+1].S);
}
pii get(ll nod,ll l,ll r,ll L,ll R){
    if (l>=R || L>=r) return {inf,0};
    if (l>=L && r<=R) return seg[nod];
    ll mid=(r+l)/2;
    pii a=get(nod*2,l,mid,L,R);
    pii b=get(nod*2+1,mid,r,L,R);
    return {min(a.F,b.F),max(a.S,b.S)};
}
long long minimum_walk(std::vector<int32_t> p, int32_t s) {
    memset(vis,0,sizeof vis);
    vector <pii> baz;
    ll n=p.size();
    ll ans=0;
    for (int i=0;i<n;i++){
       // cout << i << " rf" << endl;
       if (vis[i]) continue;
        if (p[i]==i){
            upd(1,0,n,i,{i,i});
            continue;
        }
        ll mn=i,mx=i;
        ll j=p[i];
        ans+=abs(p[i]-i);
        while(j!=i){
            ans+=abs(p[j]-j);
         //   cout << j << " " << p[j] << endl;
            mn=min(mn,j);
            mx=max(mx,j);
            vis[j]=1;
            j=p[j];
        }
         j=p[i];
        while(j!=i){
            upd(1,0,n,j,{mn,mx});
            j=p[j];
        }
        upd(1,0,n,i,{mn,mx});
        vis[i]=1;
        baz.pb({mn,-mx});
    }
 //   cout << ans << endl;
    sort(baz.begin(),baz.end());
    vector <pii> a;
    if (baz.size()){
    a.pb(baz[0]);
    for (int i=1;i<baz.size();i++){
        pii p=baz[i],q=a.back();
        if (-p.S<=-q.S) continue;
        if (p.F<=-q.S){
            a.pop_back();
            q.S=p.S;
            a.pb(q);
        }
        else
            a.pb(baz[i]);
    }
        ll p1=0;
        if (a[0].F>s){
            ans+=(a[0].F-s)*2;
            p1=1;
        }
        if (-a.back().S<s){
            ans+=(s+a.back().S)*2;
            p1=1;
        }
        if (p1==0){
            pii b={s,s};
            while(true){
                while(true){
                    pii z=get(1,0,n,b.F,b.S+1);
                    if (z!=b) b=z;
                    else break;
                }
                ll z=lower_bound(a.begin(),a.end(),pii({b.F,-inf}))-a.begin();
                if (z==a.size() || a[z].F!=b.F){
                    b.F--;
                    b.S++;
                    ans+=2;
                }
                else break;
            }
        }
        for (int i=1;i<a.size();i++){
            ans+=(a[i].F+a[i-1].S)*2;
        }
    }
    return ans;
}
/*
int32_t main() {
	int32_t n, s;
	assert(2 == scanf("%d %d", &n, &s));

	vector<int32_t> 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
4 2
1 3 2 0
*/

Compilation message

books.cpp: In function 'long long int minimum_walk(std::vector<int>, int32_t)':
books.cpp:76:19: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<std::pair<long long int, long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   76 |     for (int i=1;i<baz.size();i++){
      |                  ~^~~~~~~~~~~
books.cpp:105:22: warning: comparison of integer expressions of different signedness: 'll' {aka 'long long int'} and 'std::vector<std::pair<long long int, long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  105 |                 if (z==a.size() || a[z].F!=b.F){
      |                     ~^~~~~~~~~~
books.cpp:113:23: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<std::pair<long long int, long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  113 |         for (int i=1;i<a.size();i++){
      |                      ~^~~~~~~~~

Subtask #1
12.0 / 12.0

# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 8012 KB Output is correct
2 Correct 4 ms 8012 KB Output is correct
3 Correct 4 ms 8012 KB Output is correct
4 Correct 5 ms 8140 KB Output is correct
5 Correct 4 ms 8140 KB Output is correct
6 Correct 5 ms 8140 KB Output is correct
7 Correct 4 ms 8012 KB Output is correct
8 Correct 4 ms 8012 KB Output is correct
9 Correct 6 ms 8012 KB Output is correct
10 Correct 4 ms 8012 KB Output is correct
11 Correct 5 ms 8012 KB Output is correct
12 Correct 5 ms 8104 KB Output is correct
13 Correct 5 ms 8012 KB Output is correct
14 Correct 5 ms 8140 KB Output is correct
15 Correct 5 ms 8012 KB Output is correct
16 Correct 4 ms 8012 KB Output is correct
17 Correct 4 ms 8140 KB Output is correct
18 Correct 4 ms 8012 KB Output is correct

Subtask #2
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 8012 KB Output is correct
2 Correct 4 ms 8012 KB Output is correct
3 Correct 4 ms 8012 KB Output is correct
4 Correct 5 ms 8140 KB Output is correct
5 Correct 4 ms 8140 KB Output is correct
6 Correct 5 ms 8140 KB Output is correct
7 Correct 4 ms 8012 KB Output is correct
8 Correct 4 ms 8012 KB Output is correct
9 Correct 6 ms 8012 KB Output is correct
10 Correct 4 ms 8012 KB Output is correct
11 Correct 5 ms 8012 KB Output is correct
12 Correct 5 ms 8104 KB Output is correct
13 Correct 5 ms 8012 KB Output is correct
14 Correct 5 ms 8140 KB Output is correct
15 Correct 5 ms 8012 KB Output is correct
16 Correct 4 ms 8012 KB Output is correct
17 Correct 4 ms 8140 KB Output is correct
18 Correct 4 ms 8012 KB Output is correct
19 Correct 4 ms 8140 KB Output is correct
20 Correct 4 ms 8140 KB Output is correct
21 Correct 4 ms 8140 KB Output is correct
22 Correct 5 ms 8144 KB Output is correct
23 Correct 5 ms 8140 KB Output is correct
24 Correct 5 ms 8140 KB Output is correct
25 Correct 5 ms 8140 KB Output is correct
26 Correct 5 ms 8140 KB Output is correct
27 Correct 5 ms 8140 KB Output is correct
28 Correct 5 ms 8140 KB Output is correct
29 Correct 5 ms 8140 KB Output is correct

Subtask #3
28.0 / 28.0

# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 8012 KB Output is correct
2 Correct 4 ms 8012 KB Output is correct
3 Correct 4 ms 8012 KB Output is correct
4 Correct 5 ms 8140 KB Output is correct
5 Correct 4 ms 8140 KB Output is correct
6 Correct 5 ms 8140 KB Output is correct
7 Correct 4 ms 8012 KB Output is correct
8 Correct 4 ms 8012 KB Output is correct
9 Correct 6 ms 8012 KB Output is correct
10 Correct 4 ms 8012 KB Output is correct
11 Correct 5 ms 8012 KB Output is correct
12 Correct 5 ms 8104 KB Output is correct
13 Correct 5 ms 8012 KB Output is correct
14 Correct 5 ms 8140 KB Output is correct
15 Correct 5 ms 8012 KB Output is correct
16 Correct 4 ms 8012 KB Output is correct
17 Correct 4 ms 8140 KB Output is correct
18 Correct 4 ms 8012 KB Output is correct
19 Correct 4 ms 8140 KB Output is correct
20 Correct 4 ms 8140 KB Output is correct
21 Correct 4 ms 8140 KB Output is correct
22 Correct 5 ms 8144 KB Output is correct
23 Correct 5 ms 8140 KB Output is correct
24 Correct 5 ms 8140 KB Output is correct
25 Correct 5 ms 8140 KB Output is correct
26 Correct 5 ms 8140 KB Output is correct
27 Correct 5 ms 8140 KB Output is correct
28 Correct 5 ms 8140 KB Output is correct
29 Correct 5 ms 8140 KB Output is correct
30 Correct 758 ms 48756 KB Output is correct
31 Correct 759 ms 48764 KB Output is correct
32 Correct 326 ms 48692 KB Output is correct
33 Correct 418 ms 57944 KB Output is correct
34 Correct 348 ms 57956 KB Output is correct
35 Correct 369 ms 58416 KB Output is correct
36 Correct 376 ms 54572 KB Output is correct
37 Correct 346 ms 49392 KB Output is correct
38 Correct 362 ms 48908 KB Output is correct
39 Correct 396 ms 48892 KB Output is correct
40 Correct 390 ms 48752 KB Output is correct
41 Correct 605 ms 48708 KB Output is correct
42 Correct 525 ms 48740 KB Output is correct
43 Correct 354 ms 52712 KB Output is correct

Subtask #4
0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Correct 4 ms 8140 KB Output is correct
2 Correct 4 ms 8140 KB Output is correct
3 Correct 4 ms 8140 KB Output is correct
4 Incorrect 5 ms 8140 KB 3rd lines differ - on the 1st token, expected: '2094', found: '2098'
5 Halted 0 ms 0 KB -

Subtask #5
0 / 30.0

# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 8012 KB Output is correct
2 Correct 4 ms 8012 KB Output is correct
3 Correct 4 ms 8012 KB Output is correct
4 Correct 5 ms 8140 KB Output is correct
5 Correct 4 ms 8140 KB Output is correct
6 Correct 5 ms 8140 KB Output is correct
7 Correct 4 ms 8012 KB Output is correct
8 Correct 4 ms 8012 KB Output is correct
9 Correct 6 ms 8012 KB Output is correct
10 Correct 4 ms 8012 KB Output is correct
11 Correct 5 ms 8012 KB Output is correct
12 Correct 5 ms 8104 KB Output is correct
13 Correct 5 ms 8012 KB Output is correct
14 Correct 5 ms 8140 KB Output is correct
15 Correct 5 ms 8012 KB Output is correct
16 Correct 4 ms 8012 KB Output is correct
17 Correct 4 ms 8140 KB Output is correct
18 Correct 4 ms 8012 KB Output is correct
19 Correct 4 ms 8140 KB Output is correct
20 Correct 4 ms 8140 KB Output is correct
21 Correct 4 ms 8140 KB Output is correct
22 Correct 5 ms 8144 KB Output is correct
23 Correct 5 ms 8140 KB Output is correct
24 Correct 5 ms 8140 KB Output is correct
25 Correct 5 ms 8140 KB Output is correct
26 Correct 5 ms 8140 KB Output is correct
27 Correct 5 ms 8140 KB Output is correct
28 Correct 5 ms 8140 KB Output is correct
29 Correct 5 ms 8140 KB Output is correct
30 Correct 758 ms 48756 KB Output is correct
31 Correct 759 ms 48764 KB Output is correct
32 Correct 326 ms 48692 KB Output is correct
33 Correct 418 ms 57944 KB Output is correct
34 Correct 348 ms 57956 KB Output is correct
35 Correct 369 ms 58416 KB Output is correct
36 Correct 376 ms 54572 KB Output is correct
37 Correct 346 ms 49392 KB Output is correct
38 Correct 362 ms 48908 KB Output is correct
39 Correct 396 ms 48892 KB Output is correct
40 Correct 390 ms 48752 KB Output is correct
41 Correct 605 ms 48708 KB Output is correct
42 Correct 525 ms 48740 KB Output is correct
43 Correct 354 ms 52712 KB Output is correct
44 Correct 4 ms 8140 KB Output is correct
45 Correct 4 ms 8140 KB Output is correct
46 Correct 4 ms 8140 KB Output is correct
47 Incorrect 5 ms 8140 KB 3rd lines differ - on the 1st token, expected: '2094', found: '2098'
48 Halted 0 ms 0 KB -