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Submission #584999

# Submission time Handle Problem Language Result Execution time Memory
584999 2022-06-28T08:23:06 Z mosiashvililuka Discharging (NOI20_discharging) C++14
100 / 100
 288 ms 107092 KB 
#include<bits/stdc++.h>
using namespace std;
const long long N=999999999999999999LL;
long long a,b,c,d,e,i,j,ii,jj,zx,xc,f[1000009],dp[1000009],K,B,X,z;
deque <pair <long long, long long > > de;
pair <long long, long long> seg[4000009];
deque <pair <long long, pair <long long, long long> > > SEG;
void upd(long long q, long long w, long long rr){
    if(q>w) return;
    if(seg[rr]==make_pair(-1LL,-1LL)){
        SEG.push_back({rr,{seg[rr].first,seg[rr].second}});
        seg[rr]={K,B};
        return;
    }
    long long mid=(q+w)/2;
    if(seg[rr].first*mid+seg[rr].second>K*mid+B){
        SEG.push_back({rr,{seg[rr].first,seg[rr].second}});
        swap(seg[rr].first,K);swap(seg[rr].second,B);
    }
    if(seg[rr].first*q+seg[rr].second>K*q+B){
        upd(q,mid-1,rr*2);
    }else{
        if(seg[rr].first*w+seg[rr].second>K*w+B){
            upd(mid+1,w,rr*2+1);
        }
    }
}
void read(long long q, long long w, long long rr){
    if(q>w) return;
    if(q==w){
        if(seg[rr]!=make_pair(-1LL,-1LL)) z=min(z,seg[rr].first*X+seg[rr].second);
        return;
    }
    long long mid=(q+w)/2;
    if(seg[rr]!=make_pair(-1LL,-1LL)) z=min(z,seg[rr].first*X+seg[rr].second);
    if(X<mid){
        read(q,mid-1,rr*2);
    }
    if(X>mid){
        read(mid+1,w,rr*2+1);
    }
}
void rollback(long long q){
    while(SEG.size()>q){
        seg[SEG.back().first]=SEG.back().second;
        SEG.pop_back();
    }
}
int main(){
    ios_base::sync_with_stdio(false),cin.tie(0),cout.tie(0);
    cin>>a;
    for(i=1; i<=a; i++){
        cin>>f[i];
    }
    for(i=0; i<=a+1; i++) dp[i]=N;
    for(i=0; i<=4000005; i++){
        seg[i]={-1,-1};
    }
    f[a+1]=N;
    dp[a+1]=0;
    de.push_back({a+1,0});
    for(i=a; i>=1; i--){
        while(de.size()>0){
            c=de.back().first;d=de.back().second;
            if(f[c]<=f[i]){
                de.pop_back();
                rollback(d);
            }else{
                break;
            }
        }
        if(de.size()){
            c=de.back().first;d=de.back().second;
            e=SEG.size();
            B=dp[c];K=f[i];
            upd(1,a,1);

            de.push_back({i,e});
        }

        z=N;
        X=a-i+1;
        read(1,a,1);
        dp[i]=z;
    }
    /*for(i=1; i<=a; i++){
        cout<<dp[i]<<" ";
    }
    cout<<"\n";*/
    cout<<dp[1];
    return 0;
}

Compilation message

Discharging.cpp: In function 'void rollback(long long int)':
Discharging.cpp:44:21: warning: comparison of integer expressions of different signedness: 'std::deque<std::pair<long long int, std::pair<long long int, long long int> > >::size_type' {aka 'long unsigned int'} and 'long long int' [-Wsign-compare]
   44 |     while(SEG.size()>q){
      |           ~~~~~~~~~~^~

Subtask #1
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 25 ms 62892 KB Output is correct
2 Correct 27 ms 62896 KB Output is correct
3 Correct 25 ms 62844 KB Output is correct
4 Correct 28 ms 62888 KB Output is correct
5 Correct 25 ms 62920 KB Output is correct
6 Correct 27 ms 62940 KB Output is correct
7 Correct 26 ms 62932 KB Output is correct
8 Correct 26 ms 62880 KB Output is correct
9 Correct 28 ms 62916 KB Output is correct
10 Correct 29 ms 62864 KB Output is correct
11 Correct 24 ms 62940 KB Output is correct
12 Correct 27 ms 62956 KB Output is correct
13 Correct 28 ms 62940 KB Output is correct
14 Correct 31 ms 62828 KB Output is correct

Subtask #2
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 30 ms 62992 KB Output is correct
2 Correct 29 ms 63008 KB Output is correct
3 Correct 29 ms 62944 KB Output is correct
4 Correct 25 ms 62976 KB Output is correct
5 Correct 25 ms 63004 KB Output is correct
6 Correct 27 ms 62952 KB Output is correct
7 Correct 29 ms 62920 KB Output is correct
8 Correct 32 ms 62928 KB Output is correct
9 Correct 26 ms 62976 KB Output is correct
10 Correct 27 ms 62952 KB Output is correct
11 Correct 27 ms 62904 KB Output is correct
12 Correct 26 ms 63008 KB Output is correct
13 Correct 31 ms 62988 KB Output is correct
14 Correct 26 ms 62992 KB Output is correct
15 Correct 27 ms 62952 KB Output is correct

Subtask #3
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 30 ms 62992 KB Output is correct
2 Correct 29 ms 63008 KB Output is correct
3 Correct 29 ms 62944 KB Output is correct
4 Correct 25 ms 62976 KB Output is correct
5 Correct 25 ms 63004 KB Output is correct
6 Correct 27 ms 62952 KB Output is correct
7 Correct 29 ms 62920 KB Output is correct
8 Correct 32 ms 62928 KB Output is correct
9 Correct 26 ms 62976 KB Output is correct
10 Correct 27 ms 62952 KB Output is correct
11 Correct 27 ms 62904 KB Output is correct
12 Correct 26 ms 63008 KB Output is correct
13 Correct 31 ms 62988 KB Output is correct
14 Correct 26 ms 62992 KB Output is correct
15 Correct 27 ms 62952 KB Output is correct
16 Correct 228 ms 101360 KB Output is correct
17 Correct 288 ms 102464 KB Output is correct
18 Correct 229 ms 97944 KB Output is correct
19 Correct 271 ms 102152 KB Output is correct
20 Correct 223 ms 103712 KB Output is correct
21 Correct 236 ms 102912 KB Output is correct
22 Correct 249 ms 101416 KB Output is correct
23 Correct 224 ms 106052 KB Output is correct
24 Correct 284 ms 105420 KB Output is correct
25 Correct 229 ms 104772 KB Output is correct
26 Correct 257 ms 106480 KB Output is correct
27 Correct 227 ms 100572 KB Output is correct
28 Correct 241 ms 103148 KB Output is correct
29 Correct 276 ms 106012 KB Output is correct
30 Correct 229 ms 107092 KB Output is correct

Subtask #4
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 221 ms 78584 KB Output is correct
2 Correct 254 ms 78540 KB Output is correct
3 Correct 233 ms 78676 KB Output is correct
4 Correct 242 ms 78664 KB Output is correct
5 Correct 226 ms 78556 KB Output is correct
6 Correct 220 ms 78624 KB Output is correct
7 Correct 214 ms 78692 KB Output is correct
8 Correct 225 ms 78532 KB Output is correct
9 Correct 224 ms 78588 KB Output is correct
10 Correct 227 ms 78588 KB Output is correct

Subtask #5
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 25 ms 62892 KB Output is correct
2 Correct 27 ms 62896 KB Output is correct
3 Correct 25 ms 62844 KB Output is correct
4 Correct 28 ms 62888 KB Output is correct
5 Correct 25 ms 62920 KB Output is correct
6 Correct 27 ms 62940 KB Output is correct
7 Correct 26 ms 62932 KB Output is correct
8 Correct 26 ms 62880 KB Output is correct
9 Correct 28 ms 62916 KB Output is correct
10 Correct 29 ms 62864 KB Output is correct
11 Correct 24 ms 62940 KB Output is correct
12 Correct 27 ms 62956 KB Output is correct
13 Correct 28 ms 62940 KB Output is correct
14 Correct 31 ms 62828 KB Output is correct
15 Correct 30 ms 62992 KB Output is correct
16 Correct 29 ms 63008 KB Output is correct
17 Correct 29 ms 62944 KB Output is correct
18 Correct 25 ms 62976 KB Output is correct
19 Correct 25 ms 63004 KB Output is correct
20 Correct 27 ms 62952 KB Output is correct
21 Correct 29 ms 62920 KB Output is correct
22 Correct 32 ms 62928 KB Output is correct
23 Correct 26 ms 62976 KB Output is correct
24 Correct 27 ms 62952 KB Output is correct
25 Correct 27 ms 62904 KB Output is correct
26 Correct 26 ms 63008 KB Output is correct
27 Correct 31 ms 62988 KB Output is correct
28 Correct 26 ms 62992 KB Output is correct
29 Correct 27 ms 62952 KB Output is correct
30 Correct 29 ms 62932 KB Output is correct
31 Correct 26 ms 62936 KB Output is correct
32 Correct 29 ms 62968 KB Output is correct
33 Correct 25 ms 62952 KB Output is correct
34 Correct 27 ms 62880 KB Output is correct
35 Correct 27 ms 62976 KB Output is correct
36 Correct 25 ms 62860 KB Output is correct
37 Correct 30 ms 62932 KB Output is correct
38 Correct 30 ms 62924 KB Output is correct
39 Correct 26 ms 62924 KB Output is correct
40 Correct 25 ms 62956 KB Output is correct
41 Correct 25 ms 62976 KB Output is correct
42 Correct 26 ms 62872 KB Output is correct
43 Correct 24 ms 63004 KB Output is correct
44 Correct 25 ms 62932 KB Output is correct
45 Correct 26 ms 62932 KB Output is correct
46 Correct 24 ms 62916 KB Output is correct
47 Correct 27 ms 62932 KB Output is correct
48 Correct 25 ms 62936 KB Output is correct
49 Correct 26 ms 62932 KB Output is correct
50 Correct 26 ms 62944 KB Output is correct

Subtask #6
28.0 / 28.0

# Verdict Execution time Memory Grader output
1 Correct 25 ms 62892 KB Output is correct
2 Correct 27 ms 62896 KB Output is correct
3 Correct 25 ms 62844 KB Output is correct
4 Correct 28 ms 62888 KB Output is correct
5 Correct 25 ms 62920 KB Output is correct
6 Correct 27 ms 62940 KB Output is correct
7 Correct 26 ms 62932 KB Output is correct
8 Correct 26 ms 62880 KB Output is correct
9 Correct 28 ms 62916 KB Output is correct
10 Correct 29 ms 62864 KB Output is correct
11 Correct 24 ms 62940 KB Output is correct
12 Correct 27 ms 62956 KB Output is correct
13 Correct 28 ms 62940 KB Output is correct
14 Correct 31 ms 62828 KB Output is correct
15 Correct 30 ms 62992 KB Output is correct
16 Correct 29 ms 63008 KB Output is correct
17 Correct 29 ms 62944 KB Output is correct
18 Correct 25 ms 62976 KB Output is correct
19 Correct 25 ms 63004 KB Output is correct
20 Correct 27 ms 62952 KB Output is correct
21 Correct 29 ms 62920 KB Output is correct
22 Correct 32 ms 62928 KB Output is correct
23 Correct 26 ms 62976 KB Output is correct
24 Correct 27 ms 62952 KB Output is correct
25 Correct 27 ms 62904 KB Output is correct
26 Correct 26 ms 63008 KB Output is correct
27 Correct 31 ms 62988 KB Output is correct
28 Correct 26 ms 62992 KB Output is correct
29 Correct 27 ms 62952 KB Output is correct
30 Correct 228 ms 101360 KB Output is correct
31 Correct 288 ms 102464 KB Output is correct
32 Correct 229 ms 97944 KB Output is correct
33 Correct 271 ms 102152 KB Output is correct
34 Correct 223 ms 103712 KB Output is correct
35 Correct 236 ms 102912 KB Output is correct
36 Correct 249 ms 101416 KB Output is correct
37 Correct 224 ms 106052 KB Output is correct
38 Correct 284 ms 105420 KB Output is correct
39 Correct 229 ms 104772 KB Output is correct
40 Correct 257 ms 106480 KB Output is correct
41 Correct 227 ms 100572 KB Output is correct
42 Correct 241 ms 103148 KB Output is correct
43 Correct 276 ms 106012 KB Output is correct
44 Correct 229 ms 107092 KB Output is correct
45 Correct 221 ms 78584 KB Output is correct
46 Correct 254 ms 78540 KB Output is correct
47 Correct 233 ms 78676 KB Output is correct
48 Correct 242 ms 78664 KB Output is correct
49 Correct 226 ms 78556 KB Output is correct
50 Correct 220 ms 78624 KB Output is correct
51 Correct 214 ms 78692 KB Output is correct
52 Correct 225 ms 78532 KB Output is correct
53 Correct 224 ms 78588 KB Output is correct
54 Correct 227 ms 78588 KB Output is correct
55 Correct 29 ms 62932 KB Output is correct
56 Correct 26 ms 62936 KB Output is correct
57 Correct 29 ms 62968 KB Output is correct
58 Correct 25 ms 62952 KB Output is correct
59 Correct 27 ms 62880 KB Output is correct
60 Correct 27 ms 62976 KB Output is correct
61 Correct 25 ms 62860 KB Output is correct
62 Correct 30 ms 62932 KB Output is correct
63 Correct 30 ms 62924 KB Output is correct
64 Correct 26 ms 62924 KB Output is correct
65 Correct 25 ms 62956 KB Output is correct
66 Correct 25 ms 62976 KB Output is correct
67 Correct 26 ms 62872 KB Output is correct
68 Correct 24 ms 63004 KB Output is correct
69 Correct 25 ms 62932 KB Output is correct
70 Correct 26 ms 62932 KB Output is correct
71 Correct 24 ms 62916 KB Output is correct
72 Correct 27 ms 62932 KB Output is correct
73 Correct 25 ms 62936 KB Output is correct
74 Correct 26 ms 62932 KB Output is correct
75 Correct 26 ms 62944 KB Output is correct
76 Correct 232 ms 78560 KB Output is correct
77 Correct 239 ms 78568 KB Output is correct
78 Correct 232 ms 78644 KB Output is correct
79 Correct 235 ms 78588 KB Output is correct
80 Correct 273 ms 78660 KB Output is correct
81 Correct 243 ms 78548 KB Output is correct
82 Correct 228 ms 78508 KB Output is correct
83 Correct 236 ms 78564 KB Output is correct
84 Correct 231 ms 78568 KB Output is correct
85 Correct 264 ms 78524 KB Output is correct
86 Correct 244 ms 78540 KB Output is correct
87 Correct 239 ms 78592 KB Output is correct
88 Correct 231 ms 78588 KB Output is correct
89 Correct 229 ms 78472 KB Output is correct
90 Correct 234 ms 78476 KB Output is correct
91 Correct 225 ms 78588 KB Output is correct
92 Correct 227 ms 103504 KB Output is correct
93 Correct 228 ms 102996 KB Output is correct
94 Correct 228 ms 78588 KB Output is correct
95 Correct 247 ms 78532 KB Output is correct
96 Correct 246 ms 78592 KB Output is correct
97 Correct 227 ms 78580 KB Output is correct
98 Correct 242 ms 78532 KB Output is correct
99 Correct 229 ms 78504 KB Output is correct
100 Correct 235 ms 78592 KB Output is correct