답안 #95380

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
95380 2019-01-31T02:42:48 Z LittleFlowers__ 수열 (APIO14_sequence) C++14
100 / 100
1128 ms 85372 KB
#include <bits/stdc++.h>
using namespace std;
#define fi first
#define se second.first
#define rd second.second
#define mp(a,b,c) make_pair(a,make_pair(b,c))
using ii = pair<long long,pair<long long,int>>;

const int N=100010;
int n,k,it;
long long ma;
int a[N];
long long s[N],x[N];
vector<int> ans;

int cur;
int P[210][N];
long long F[N],H[N];
ii st[N];
double G[N];

double I(ii u,ii v){return 1.0*(v.se-u.se)/(u.fi-v.fi);}
main()
{
    ios_base::sync_with_stdio(false),cin.tie(nullptr);
    cin>>n>>k;
    for(int i=1;i<=n;++i) cin>>a[i],s[i]=s[i-1]+a[i];
    for(int i=1;i<=n;++i) x[i]=s[n]-s[i];
    for(int c=1;c<=k;++c)
    {
        cur=0;
        for(int i=c;i<n;++i)
        {
            ii T=mp(-s[i-1],H[i-1],i-1);
            if(cur && st[cur].fi==T.fi) cur--;
            while(cur>=2 && G[cur]<=I(st[cur],T)) cur--;
            st[++cur]=T;
            G[cur]=I(st[cur],st[cur-1]);

            int l=2,m,r=cur,o=1;
            while(l<=r)
            {
                m=(l+r)/2;
                if(G[m]>=x[i]) o=m,l=m+1;
                else r=m-1;
            }
            F[i]=(st[o].fi+s[i])*x[i] + st[o].se;
            P[c][i]=st[o].rd;
        }
        for(int i=c;i<n;++i) H[i]=F[i];
    }
    for(int i=k;i<n;++i) if(ma<=F[i]) ma=F[i],it=i;
    for(;k>0;k--) ans.push_back(it),
                  it=P[k][it];
    cout<<ma<<"\n";
    reverse(ans.begin(),ans.end());
    for(auto i:ans) cout<<i<<" ";
}

Compilation message

sequence.cpp:23:6: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
 main()
      ^
# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 376 KB contestant found the optimal answer: 108 == 108
2 Correct 2 ms 376 KB contestant found the optimal answer: 999 == 999
3 Correct 2 ms 376 KB contestant found the optimal answer: 0 == 0
4 Correct 2 ms 248 KB contestant found the optimal answer: 1542524 == 1542524
5 Correct 2 ms 376 KB contestant found the optimal answer: 4500000000 == 4500000000
6 Correct 2 ms 376 KB contestant found the optimal answer: 1 == 1
7 Correct 2 ms 376 KB contestant found the optimal answer: 1 == 1
8 Correct 2 ms 376 KB contestant found the optimal answer: 1 == 1
9 Correct 2 ms 376 KB contestant found the optimal answer: 100400096 == 100400096
10 Correct 2 ms 380 KB contestant found the optimal answer: 900320000 == 900320000
11 Correct 2 ms 376 KB contestant found the optimal answer: 3698080248 == 3698080248
12 Correct 2 ms 376 KB contestant found the optimal answer: 3200320000 == 3200320000
13 Correct 2 ms 376 KB contestant found the optimal answer: 140072 == 140072
14 Correct 2 ms 376 KB contestant found the optimal answer: 376041456 == 376041456
15 Correct 2 ms 376 KB contestant found the optimal answer: 805 == 805
16 Correct 2 ms 376 KB contestant found the optimal answer: 900189994 == 900189994
17 Correct 2 ms 376 KB contestant found the optimal answer: 999919994 == 999919994
# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 376 KB contestant found the optimal answer: 1093956 == 1093956
2 Correct 2 ms 376 KB contestant found the optimal answer: 302460000 == 302460000
3 Correct 2 ms 632 KB contestant found the optimal answer: 122453454361 == 122453454361
4 Correct 2 ms 348 KB contestant found the optimal answer: 93663683509 == 93663683509
5 Correct 2 ms 504 KB contestant found the optimal answer: 1005304678 == 1005304678
6 Correct 2 ms 376 KB contestant found the optimal answer: 933702 == 933702
7 Correct 2 ms 504 KB contestant found the optimal answer: 25082842857 == 25082842857
8 Correct 2 ms 504 KB contestant found the optimal answer: 687136 == 687136
9 Correct 2 ms 376 KB contestant found the optimal answer: 27295930079 == 27295930079
10 Correct 2 ms 376 KB contestant found the optimal answer: 29000419931 == 29000419931
# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 376 KB contestant found the optimal answer: 610590000 == 610590000
2 Correct 2 ms 376 KB contestant found the optimal answer: 311760000 == 311760000
3 Correct 3 ms 1400 KB contestant found the optimal answer: 1989216017013 == 1989216017013
4 Correct 2 ms 376 KB contestant found the optimal answer: 1499437552673 == 1499437552673
5 Correct 9 ms 1144 KB contestant found the optimal answer: 1019625819 == 1019625819
6 Correct 3 ms 1272 KB contestant found the optimal answer: 107630884 == 107630884
7 Correct 3 ms 1400 KB contestant found the optimal answer: 475357671774 == 475357671774
8 Correct 2 ms 636 KB contestant found the optimal answer: 193556962 == 193556962
9 Correct 2 ms 508 KB contestant found the optimal answer: 482389919803 == 482389919803
10 Correct 2 ms 760 KB contestant found the optimal answer: 490686959791 == 490686959791
# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 504 KB contestant found the optimal answer: 21503404 == 21503404
2 Correct 2 ms 504 KB contestant found the optimal answer: 140412195 == 140412195
3 Correct 7 ms 2168 KB contestant found the optimal answer: 49729674225461 == 49729674225461
4 Correct 2 ms 504 KB contestant found the optimal answer: 37485571387523 == 37485571387523
5 Correct 9 ms 2168 KB contestant found the optimal answer: 679388326 == 679388326
6 Correct 8 ms 1856 KB contestant found the optimal answer: 4699030287 == 4699030287
7 Correct 9 ms 2168 KB contestant found the optimal answer: 12418819758185 == 12418819758185
8 Correct 8 ms 2168 KB contestant found the optimal answer: 31093317350 == 31093317350
9 Correct 4 ms 764 KB contestant found the optimal answer: 12194625429236 == 12194625429236
10 Correct 5 ms 1144 KB contestant found the optimal answer: 12345131038664 == 12345131038664
# 결과 실행 시간 메모리 Grader output
1 Correct 4 ms 1144 KB contestant found the optimal answer: 1818678304 == 1818678304
2 Correct 4 ms 1144 KB contestant found the optimal answer: 1326260195 == 1326260195
3 Correct 75 ms 9720 KB contestant found the optimal answer: 4973126687469639 == 4973126687469639
4 Correct 4 ms 1308 KB contestant found the optimal answer: 3748491676694116 == 3748491676694116
5 Correct 62 ms 6264 KB contestant found the optimal answer: 1085432199 == 1085432199
6 Correct 83 ms 7016 KB contestant found the optimal answer: 514790755404 == 514790755404
7 Correct 76 ms 7540 KB contestant found the optimal answer: 1256105310476641 == 1256105310476641
8 Correct 70 ms 6308 KB contestant found the optimal answer: 3099592898816 == 3099592898816
9 Correct 64 ms 7032 KB contestant found the optimal answer: 1241131419367412 == 1241131419367412
10 Correct 82 ms 8944 KB contestant found the optimal answer: 1243084101967798 == 1243084101967798
# 결과 실행 시간 메모리 Grader output
1 Correct 24 ms 7544 KB contestant found the optimal answer: 19795776960 == 19795776960
2 Correct 26 ms 7544 KB contestant found the optimal answer: 19874432173 == 19874432173
3 Correct 878 ms 85372 KB contestant found the optimal answer: 497313449256899208 == 497313449256899208
4 Correct 25 ms 8184 KB contestant found the optimal answer: 374850090734572421 == 374850090734572421
5 Correct 1128 ms 84820 KB contestant found the optimal answer: 36183271951 == 36183271951
6 Correct 1014 ms 61296 KB contestant found the optimal answer: 51629847150471 == 51629847150471
7 Correct 873 ms 65756 KB contestant found the optimal answer: 124074747024496432 == 124074747024496432
8 Correct 862 ms 54904 KB contestant found the optimal answer: 309959349080800 == 309959349080800
9 Correct 954 ms 61796 KB contestant found the optimal answer: 124113525649823701 == 124113525649823701
10 Correct 922 ms 77204 KB contestant found the optimal answer: 124309619349406845 == 124309619349406845