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Submission #401597

# Submission time Handle Problem Language Result Execution time Memory
401597 2021-05-10T14:40:36 Z Fidisk Feast (NOI19_feast) C++14
40 / 100
 95 ms 13204 KB 
#include <bits/stdc++.h>
using namespace std;

#define oo 1e15
#define fi first
#define se second
#define sp(iiii) setprecision(iiii)
#define IO ios_base::sync_with_stdio(false); cin.tie(0)
#define ms(aaaa,xxxx) memset(aaaa,xxxx,sizeof(aaaa))
#define cntbit(xxxx) __builtin_popcount(xxxx)
#define getbit(xxxx,aaaa) ((xxxx>>(aaaa-1))&1)

typedef long double ld;
typedef long long ll;
typedef unsigned long long ull;
typedef pair<int,int> pii;
typedef pair<pair<int,int>,int> piii;
typedef pair<long long,long long> pll;
typedef pair<pair<long long,long long>,long long> plll;
typedef pair<pair<long long,long long>,pair<long long,long long>> pllll;
typedef pair<pair<long long,long long>,bool> pllb;

const ll base=361;
const ll mod=998244353;
const ld eps=1e-5;
const ll maxn=1e6;

struct comp{
    bool operator() (pll x,pll y) {
        return x.fi>y.fi;
    }
};

ll sig(ll x) {
    if (x<0) {
        return -1;
    }
    return 1;
}

priority_queue<pll,vector<pll>,comp> heap;
ll n,k,i,a[400009],tmp,b[400009],m,l[400009],r[400009],res,cnt,cur;
bool ok[400009];

int main(){
    IO;
    cin>>n>>k;
    //cout<<n<<'\n';
    for (i=1;i<=n;i++) {
        cin>>a[i];
    }
    for (i=1;i<=n;i++) {
        if (sig(a[i])*sig(a[i-1])<0) {
            if (m==0&&cur<0) {
                cur=a[i];
            }
            else {
                //cout<<i<<'\n';
                m++;
                b[m]=cur;
                cur=a[i];
            }
        }
        else {
            cur+=a[i];
        }
        //cout<<cur<<'\n';
    }
    if (cur>0) {
        m++;
        b[m]=cur;
    }
    //cout<<m<<'\n';
    for (i=1;i<=m;i++) {
        //cout<<b[i]<<' ';
        l[i]=i+1;
        r[i]=i-1;
        if (b[i]>0) {
            cnt++;
        }
        heap.push({abs(b[i]),i});
    }
    //cout<<'\n';
    r[1]=0;
    l[m]=0;
    l[0]=1;
    r[m+1]=m;
    while (cnt>k) {
        while (b[l[0]]<0) {
            ok[l[0]]=true;
            l[0]=l[l[0]];
            r[l[0]]=0;
        }
        while (b[r[m+1]]<0) {
            ok[r[m+1]]=true;
            r[m+1]=r[r[m+1]];
            l[r[m+1]]=0;
        }
        ll y=heap.top().fi;
        ll x=heap.top().se;
        heap.pop();
        if (ok[x]) continue;
        //cout<<b[x]<<' '<<l[x]<<' '<<r[x]<<'\n';
        tmp=0;
        if (b[x]>0) {
            tmp++;
        }
        if (b[r[x]]>0) {
            tmp++;
        }
        if (b[l[x]]>0) {
            tmp++;
        }
        if (b[x]+b[l[x]]+b[r[x]]>0) {
            tmp--;
        }
        cnt-=tmp;
        ok[l[x]]=true;
        ok[r[x]]=true;
        b[x]=b[l[x]]+b[r[x]]+b[x];
        l[x]=l[l[x]];
        r[x]=r[r[x]];
        if (l[x]!=0) {
            r[l[x]]=x;
        }
        if (r[x]!=0) {
            l[r[x]]=x;
        }
        //if (b[x]>=0) {
            heap.push({abs(b[x]),x});
        //}
    }
    for (i=1;i<=m;i++) {
        if (!ok[i]&&b[i]>0) {
            res+=b[i];
        }
    }
    cout<<res<<'\n';
}

Compilation message

feast.cpp: In function 'int main()':
feast.cpp:99:12: warning: unused variable 'y' [-Wunused-variable]
   99 |         ll y=heap.top().fi;
      |            ^

Subtask #1
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 34 ms 5388 KB Output is correct
2 Correct 35 ms 5508 KB Output is correct
3 Correct 37 ms 5504 KB Output is correct
4 Correct 35 ms 5456 KB Output is correct
5 Correct 35 ms 5444 KB Output is correct
6 Correct 35 ms 5364 KB Output is correct
7 Correct 34 ms 5364 KB Output is correct
8 Correct 37 ms 5440 KB Output is correct
9 Correct 34 ms 5328 KB Output is correct
10 Correct 34 ms 5444 KB Output is correct

Subtask #2
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 24 ms 3788 KB Output is correct
2 Correct 28 ms 3780 KB Output is correct
3 Correct 23 ms 3760 KB Output is correct
4 Correct 23 ms 3648 KB Output is correct
5 Correct 34 ms 5316 KB Output is correct
6 Correct 25 ms 3660 KB Output is correct
7 Correct 24 ms 3792 KB Output is correct
8 Correct 35 ms 5540 KB Output is correct
9 Correct 34 ms 5316 KB Output is correct
10 Correct 24 ms 3744 KB Output is correct

Subtask #3
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 87 ms 13140 KB Output is correct
2 Correct 89 ms 13060 KB Output is correct
3 Correct 95 ms 13116 KB Output is correct
4 Correct 86 ms 12992 KB Output is correct
5 Correct 86 ms 13116 KB Output is correct
6 Correct 87 ms 13116 KB Output is correct
7 Correct 89 ms 13144 KB Output is correct
8 Correct 93 ms 13072 KB Output is correct
9 Correct 91 ms 13204 KB Output is correct
10 Correct 90 ms 13112 KB Output is correct

Subtask #4
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 1 ms 332 KB Output is correct
4 Correct 1 ms 332 KB Output is correct
5 Correct 1 ms 332 KB Output is correct
6 Correct 1 ms 324 KB Output is correct
7 Correct 1 ms 336 KB Output is correct
8 Correct 1 ms 332 KB Output is correct
9 Correct 1 ms 320 KB Output is correct
10 Correct 1 ms 332 KB Output is correct

Subtask #5
0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 1 ms 332 KB Output is correct
4 Correct 1 ms 332 KB Output is correct
5 Correct 1 ms 332 KB Output is correct
6 Correct 1 ms 324 KB Output is correct
7 Correct 1 ms 336 KB Output is correct
8 Correct 1 ms 332 KB Output is correct
9 Correct 1 ms 320 KB Output is correct
10 Correct 1 ms 332 KB Output is correct
11 Correct 1 ms 324 KB Output is correct
12 Correct 1 ms 332 KB Output is correct
13 Correct 1 ms 332 KB Output is correct
14 Correct 1 ms 324 KB Output is correct
15 Correct 1 ms 320 KB Output is correct
16 Correct 1 ms 312 KB Output is correct
17 Correct 1 ms 332 KB Output is correct
18 Correct 1 ms 332 KB Output is correct
19 Correct 1 ms 332 KB Output is correct
20 Incorrect 1 ms 332 KB Output isn't correct

Subtask #6
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 1 ms 332 KB Output is correct
4 Correct 1 ms 332 KB Output is correct
5 Correct 1 ms 332 KB Output is correct
6 Correct 1 ms 324 KB Output is correct
7 Correct 1 ms 336 KB Output is correct
8 Correct 1 ms 332 KB Output is correct
9 Correct 1 ms 320 KB Output is correct
10 Correct 1 ms 332 KB Output is correct
11 Correct 1 ms 324 KB Output is correct
12 Correct 1 ms 332 KB Output is correct
13 Correct 1 ms 332 KB Output is correct
14 Correct 1 ms 324 KB Output is correct
15 Correct 1 ms 320 KB Output is correct
16 Correct 1 ms 312 KB Output is correct
17 Correct 1 ms 332 KB Output is correct
18 Correct 1 ms 332 KB Output is correct
19 Correct 1 ms 332 KB Output is correct
20 Incorrect 1 ms 332 KB Output isn't correct

Subtask #7
0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 34 ms 5388 KB Output is correct
2 Correct 35 ms 5508 KB Output is correct
3 Correct 37 ms 5504 KB Output is correct
4 Correct 35 ms 5456 KB Output is correct
5 Correct 35 ms 5444 KB Output is correct
6 Correct 35 ms 5364 KB Output is correct
7 Correct 34 ms 5364 KB Output is correct
8 Correct 37 ms 5440 KB Output is correct
9 Correct 34 ms 5328 KB Output is correct
10 Correct 34 ms 5444 KB Output is correct
11 Correct 24 ms 3788 KB Output is correct
12 Correct 28 ms 3780 KB Output is correct
13 Correct 23 ms 3760 KB Output is correct
14 Correct 23 ms 3648 KB Output is correct
15 Correct 34 ms 5316 KB Output is correct
16 Correct 25 ms 3660 KB Output is correct
17 Correct 24 ms 3792 KB Output is correct
18 Correct 35 ms 5540 KB Output is correct
19 Correct 34 ms 5316 KB Output is correct
20 Correct 24 ms 3744 KB Output is correct
21 Correct 87 ms 13140 KB Output is correct
22 Correct 89 ms 13060 KB Output is correct
23 Correct 95 ms 13116 KB Output is correct
24 Correct 86 ms 12992 KB Output is correct
25 Correct 86 ms 13116 KB Output is correct
26 Correct 87 ms 13116 KB Output is correct
27 Correct 89 ms 13144 KB Output is correct
28 Correct 93 ms 13072 KB Output is correct
29 Correct 91 ms 13204 KB Output is correct
30 Correct 90 ms 13112 KB Output is correct
31 Correct 1 ms 332 KB Output is correct
32 Correct 1 ms 332 KB Output is correct
33 Correct 1 ms 332 KB Output is correct
34 Correct 1 ms 332 KB Output is correct
35 Correct 1 ms 332 KB Output is correct
36 Correct 1 ms 324 KB Output is correct
37 Correct 1 ms 336 KB Output is correct
38 Correct 1 ms 332 KB Output is correct
39 Correct 1 ms 320 KB Output is correct
40 Correct 1 ms 332 KB Output is correct
41 Correct 1 ms 324 KB Output is correct
42 Correct 1 ms 332 KB Output is correct
43 Correct 1 ms 332 KB Output is correct
44 Correct 1 ms 324 KB Output is correct
45 Correct 1 ms 320 KB Output is correct
46 Correct 1 ms 312 KB Output is correct
47 Correct 1 ms 332 KB Output is correct
48 Correct 1 ms 332 KB Output is correct
49 Correct 1 ms 332 KB Output is correct
50 Incorrect 1 ms 332 KB Output isn't correct