oj.uz

Submission #915550

# Submission time Handle Problem Language Result Execution time Memory
915550 2024-01-24T06:57:06 Z guagua0407 Cake 3 (JOI19_cake3) C++17
100 / 100
 2128 ms 19792 KB 
//#pragma GCC optimize("O3")
#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define pii pair<int,int>
#define f first
#define s second
#define all(x) x.begin(),x.end()
#define _ ios::sync_with_stdio(0); cin.tie(0); cout.tie(0);

int dx[4]={0,0,1,-1};
int dy[4]={1,-1,0,0};

void setIO(string s) {
    freopen((s + ".in").c_str(), "r", stdin);
    freopen((s + ".out").c_str(), "w", stdout);
}

const int mxn=2e5+5;
const ll inf=1e18;
ll v[mxn],c[mxn];
ll pre[mxn];
ll sum;
multiset<int> S,T;
int n,m;
int L,R;
ll ans=-inf;

void sir(int l,int r){
    while(L>l){
        L--;
        S.insert(v[L]);
        sum+=v[L];
        if((int)S.size()>m){
            sum-=*S.begin();
            T.insert(*S.begin());
            S.erase(S.begin());
        }
    }
    while(R<r){
        R++;
        S.insert(v[R]);
        sum+=v[R];
        if((int)S.size()>m){
            sum-=*S.begin();
            T.insert(*S.begin());
            S.erase(S.begin());
        }
    }
    while(L<l){
        if(T.find(v[L])!=T.end()){
            T.erase(T.find(v[L]));
        }
        else{
            sum+=*T.rbegin();
            S.insert(*T.rbegin());
            T.erase(prev(T.end()));
            sum-=v[L];
            S.erase(S.find(v[L]));
        }
        L++;
    }
    while(R>r){
        if(T.find(v[R])!=T.end()){
            T.erase(T.find(v[R]));
        }
        else{
            sum+=*T.rbegin();
            S.insert(*T.rbegin());
            T.erase(prev(T.end()));
            sum-=v[R];
            S.erase(S.find(v[R]));
        }
        R--;
    }
}

void go(int l,int r,int tl,int tr){
    if(l>r){
        return;
    }
    int mid=(l+r)/2;
    int best=tl;
    ll cur=-inf;
    for(int i=tl;i<=min(tr,mid-m+1);i++){
        sir(i,mid);
        ll x=sum-2*(c[mid]-c[i]);
        if(x>cur){
            cur=x;
            best=i;
        }
    }
    ans=max(ans,cur);
    go(l,mid-1,tl,best);
    go(mid+1,r,best,tr);
}

int main() {_
    cin>>n>>m;
    vector<pair<int,int>> vec(n);
    for(int i=0;i<n;i++){
        cin>>vec[i].s>>vec[i].f;
    }
    sort(all(vec));
    for(int i=1;i<=n;i++){
        v[i]=vec[i-1].s;
    }
    for(int i=1;i<=n;i++){
        c[i]=vec[i-1].f;
    }
    L=1;
    R=n;
    for(int i=1;i<=n;i++){
        S.insert(v[i]);
        sum+=v[i];
        if((int)S.size()>m){
            sum-=*S.begin();
            T.insert(*S.begin());
            S.erase(S.begin());
        }
    }
    go(m,n,1,n);
    cout<<ans<<'\n';
    return 0;
}
//maybe its multiset not set
//yeeorz
//laborz

Compilation message

cake3.cpp: In function 'void setIO(std::string)':
cake3.cpp:15:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   15 |     freopen((s + ".in").c_str(), "r", stdin);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
cake3.cpp:16:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   16 |     freopen((s + ".out").c_str(), "w", stdout);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 4440 KB Output is correct
2 Correct 1 ms 4444 KB Output is correct
3 Correct 1 ms 4444 KB Output is correct
4 Correct 1 ms 4440 KB Output is correct
5 Correct 1 ms 4444 KB Output is correct
6 Correct 1 ms 4444 KB Output is correct
7 Correct 1 ms 4444 KB Output is correct
8 Correct 1 ms 4444 KB Output is correct
9 Correct 2 ms 4444 KB Output is correct
10 Correct 1 ms 4444 KB Output is correct
11 Correct 1 ms 4440 KB Output is correct
12 Correct 2 ms 4444 KB Output is correct
13 Correct 1 ms 4444 KB Output is correct
14 Correct 1 ms 4556 KB Output is correct
15 Correct 1 ms 4444 KB Output is correct
16 Correct 1 ms 4444 KB Output is correct
17 Correct 1 ms 4444 KB Output is correct
18 Correct 1 ms 4444 KB Output is correct
19 Correct 1 ms 4444 KB Output is correct
20 Correct 1 ms 4444 KB Output is correct
21 Correct 1 ms 4552 KB Output is correct
22 Correct 1 ms 4444 KB Output is correct
23 Correct 1 ms 4444 KB Output is correct
24 Correct 2 ms 4444 KB Output is correct
25 Correct 1 ms 4444 KB Output is correct
26 Correct 2 ms 4440 KB Output is correct
27 Correct 1 ms 4444 KB Output is correct
28 Correct 1 ms 4444 KB Output is correct
29 Correct 1 ms 4444 KB Output is correct
30 Correct 1 ms 4444 KB Output is correct
31 Correct 2 ms 4440 KB Output is correct
32 Correct 1 ms 4440 KB Output is correct
33 Correct 1 ms 4560 KB Output is correct
34 Correct 3 ms 4524 KB Output is correct
35 Correct 1 ms 4444 KB Output is correct
36 Correct 1 ms 4440 KB Output is correct
37 Correct 1 ms 4444 KB Output is correct

Subtask #2
19.0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 4440 KB Output is correct
2 Correct 1 ms 4444 KB Output is correct
3 Correct 1 ms 4444 KB Output is correct
4 Correct 1 ms 4440 KB Output is correct
5 Correct 1 ms 4444 KB Output is correct
6 Correct 1 ms 4444 KB Output is correct
7 Correct 1 ms 4444 KB Output is correct
8 Correct 1 ms 4444 KB Output is correct
9 Correct 2 ms 4444 KB Output is correct
10 Correct 1 ms 4444 KB Output is correct
11 Correct 1 ms 4440 KB Output is correct
12 Correct 2 ms 4444 KB Output is correct
13 Correct 1 ms 4444 KB Output is correct
14 Correct 1 ms 4556 KB Output is correct
15 Correct 1 ms 4444 KB Output is correct
16 Correct 1 ms 4444 KB Output is correct
17 Correct 1 ms 4444 KB Output is correct
18 Correct 1 ms 4444 KB Output is correct
19 Correct 1 ms 4444 KB Output is correct
20 Correct 1 ms 4444 KB Output is correct
21 Correct 1 ms 4552 KB Output is correct
22 Correct 1 ms 4444 KB Output is correct
23 Correct 1 ms 4444 KB Output is correct
24 Correct 2 ms 4444 KB Output is correct
25 Correct 1 ms 4444 KB Output is correct
26 Correct 2 ms 4440 KB Output is correct
27 Correct 1 ms 4444 KB Output is correct
28 Correct 1 ms 4444 KB Output is correct
29 Correct 1 ms 4444 KB Output is correct
30 Correct 1 ms 4444 KB Output is correct
31 Correct 2 ms 4440 KB Output is correct
32 Correct 1 ms 4440 KB Output is correct
33 Correct 1 ms 4560 KB Output is correct
34 Correct 3 ms 4524 KB Output is correct
35 Correct 1 ms 4444 KB Output is correct
36 Correct 1 ms 4440 KB Output is correct
37 Correct 1 ms 4444 KB Output is correct
38 Correct 7 ms 4700 KB Output is correct
39 Correct 6 ms 4660 KB Output is correct
40 Correct 5 ms 4700 KB Output is correct
41 Correct 5 ms 4700 KB Output is correct
42 Correct 4 ms 4700 KB Output is correct
43 Correct 4 ms 4696 KB Output is correct
44 Correct 6 ms 4700 KB Output is correct
45 Correct 6 ms 4700 KB Output is correct
46 Correct 7 ms 4700 KB Output is correct
47 Correct 7 ms 4568 KB Output is correct
48 Correct 6 ms 4700 KB Output is correct
49 Correct 5 ms 4700 KB Output is correct
50 Correct 5 ms 4700 KB Output is correct
51 Correct 5 ms 4700 KB Output is correct
52 Correct 5 ms 4700 KB Output is correct
53 Correct 5 ms 4696 KB Output is correct
54 Correct 4 ms 4700 KB Output is correct
55 Correct 3 ms 4700 KB Output is correct
56 Correct 3 ms 4700 KB Output is correct
57 Correct 4 ms 4700 KB Output is correct
58 Correct 3 ms 4608 KB Output is correct
59 Correct 3 ms 4604 KB Output is correct
60 Correct 5 ms 4696 KB Output is correct
61 Correct 4 ms 4604 KB Output is correct
62 Correct 3 ms 4700 KB Output is correct
63 Correct 4 ms 4700 KB Output is correct
64 Correct 3 ms 4696 KB Output is correct
65 Correct 6 ms 4700 KB Output is correct
66 Correct 6 ms 4704 KB Output is correct
67 Correct 7 ms 4700 KB Output is correct
68 Correct 6 ms 4700 KB Output is correct
69 Correct 6 ms 4700 KB Output is correct
70 Correct 5 ms 4700 KB Output is correct
71 Correct 5 ms 4592 KB Output is correct
72 Correct 3 ms 4444 KB Output is correct
73 Correct 5 ms 4444 KB Output is correct
74 Correct 2 ms 4620 KB Output is correct

Subtask #3
76.0 / 76.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 4440 KB Output is correct
2 Correct 1 ms 4444 KB Output is correct
3 Correct 1 ms 4444 KB Output is correct
4 Correct 1 ms 4440 KB Output is correct
5 Correct 1 ms 4444 KB Output is correct
6 Correct 1 ms 4444 KB Output is correct
7 Correct 1 ms 4444 KB Output is correct
8 Correct 1 ms 4444 KB Output is correct
9 Correct 2 ms 4444 KB Output is correct
10 Correct 1 ms 4444 KB Output is correct
11 Correct 1 ms 4440 KB Output is correct
12 Correct 2 ms 4444 KB Output is correct
13 Correct 1 ms 4444 KB Output is correct
14 Correct 1 ms 4556 KB Output is correct
15 Correct 1 ms 4444 KB Output is correct
16 Correct 1 ms 4444 KB Output is correct
17 Correct 1 ms 4444 KB Output is correct
18 Correct 1 ms 4444 KB Output is correct
19 Correct 1 ms 4444 KB Output is correct
20 Correct 1 ms 4444 KB Output is correct
21 Correct 1 ms 4552 KB Output is correct
22 Correct 1 ms 4444 KB Output is correct
23 Correct 1 ms 4444 KB Output is correct
24 Correct 2 ms 4444 KB Output is correct
25 Correct 1 ms 4444 KB Output is correct
26 Correct 2 ms 4440 KB Output is correct
27 Correct 1 ms 4444 KB Output is correct
28 Correct 1 ms 4444 KB Output is correct
29 Correct 1 ms 4444 KB Output is correct
30 Correct 1 ms 4444 KB Output is correct
31 Correct 2 ms 4440 KB Output is correct
32 Correct 1 ms 4440 KB Output is correct
33 Correct 1 ms 4560 KB Output is correct
34 Correct 3 ms 4524 KB Output is correct
35 Correct 1 ms 4444 KB Output is correct
36 Correct 1 ms 4440 KB Output is correct
37 Correct 1 ms 4444 KB Output is correct
38 Correct 7 ms 4700 KB Output is correct
39 Correct 6 ms 4660 KB Output is correct
40 Correct 5 ms 4700 KB Output is correct
41 Correct 5 ms 4700 KB Output is correct
42 Correct 4 ms 4700 KB Output is correct
43 Correct 4 ms 4696 KB Output is correct
44 Correct 6 ms 4700 KB Output is correct
45 Correct 6 ms 4700 KB Output is correct
46 Correct 7 ms 4700 KB Output is correct
47 Correct 7 ms 4568 KB Output is correct
48 Correct 6 ms 4700 KB Output is correct
49 Correct 5 ms 4700 KB Output is correct
50 Correct 5 ms 4700 KB Output is correct
51 Correct 5 ms 4700 KB Output is correct
52 Correct 5 ms 4700 KB Output is correct
53 Correct 5 ms 4696 KB Output is correct
54 Correct 4 ms 4700 KB Output is correct
55 Correct 3 ms 4700 KB Output is correct
56 Correct 3 ms 4700 KB Output is correct
57 Correct 4 ms 4700 KB Output is correct
58 Correct 3 ms 4608 KB Output is correct
59 Correct 3 ms 4604 KB Output is correct
60 Correct 5 ms 4696 KB Output is correct
61 Correct 4 ms 4604 KB Output is correct
62 Correct 3 ms 4700 KB Output is correct
63 Correct 4 ms 4700 KB Output is correct
64 Correct 3 ms 4696 KB Output is correct
65 Correct 6 ms 4700 KB Output is correct
66 Correct 6 ms 4704 KB Output is correct
67 Correct 7 ms 4700 KB Output is correct
68 Correct 6 ms 4700 KB Output is correct
69 Correct 6 ms 4700 KB Output is correct
70 Correct 5 ms 4700 KB Output is correct
71 Correct 5 ms 4592 KB Output is correct
72 Correct 3 ms 4444 KB Output is correct
73 Correct 5 ms 4444 KB Output is correct
74 Correct 2 ms 4620 KB Output is correct
75 Correct 1867 ms 18532 KB Output is correct
76 Correct 2021 ms 18260 KB Output is correct
77 Correct 1616 ms 18516 KB Output is correct
78 Correct 1613 ms 18784 KB Output is correct
79 Correct 117 ms 18884 KB Output is correct
80 Correct 236 ms 18520 KB Output is correct
81 Correct 1726 ms 18004 KB Output is correct
82 Correct 1972 ms 18256 KB Output is correct
83 Correct 1939 ms 18628 KB Output is correct
84 Correct 2128 ms 18560 KB Output is correct
85 Correct 1839 ms 18000 KB Output is correct
86 Correct 835 ms 17488 KB Output is correct
87 Correct 978 ms 17488 KB Output is correct
88 Correct 1557 ms 17492 KB Output is correct
89 Correct 1658 ms 18120 KB Output is correct
90 Correct 1052 ms 18800 KB Output is correct
91 Correct 635 ms 17508 KB Output is correct
92 Correct 640 ms 17500 KB Output is correct
93 Correct 863 ms 18004 KB Output is correct
94 Correct 475 ms 18620 KB Output is correct
95 Correct 914 ms 18756 KB Output is correct
96 Correct 711 ms 17476 KB Output is correct
97 Correct 737 ms 18772 KB Output is correct
98 Correct 727 ms 18516 KB Output is correct
99 Correct 681 ms 18620 KB Output is correct
100 Correct 472 ms 17660 KB Output is correct
101 Correct 569 ms 17744 KB Output is correct
102 Correct 1736 ms 17656 KB Output is correct
103 Correct 1425 ms 17400 KB Output is correct
104 Correct 1621 ms 18256 KB Output is correct
105 Correct 1292 ms 18172 KB Output is correct
106 Correct 1344 ms 18632 KB Output is correct
107 Correct 1195 ms 17948 KB Output is correct
108 Correct 1671 ms 18592 KB Output is correct
109 Correct 1178 ms 19536 KB Output is correct
110 Correct 778 ms 17132 KB Output is correct
111 Correct 1070 ms 17228 KB Output is correct
112 Correct 658 ms 16784 KB Output is correct
113 Correct 88 ms 19792 KB Output is correct