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Submission #1114799

# Submission time Handle Problem Language Result Execution time Memory
1114799 2024-11-19T16:01:14 Z Petrix Weighting stones (IZhO11_stones) C++17
100 / 100
 31 ms 7764 KB 
#include <iostream>
using namespace std;

#define int long long

struct struct_aint{
    int sum,pref_min,pref_max;
};

struct_aint v[400005];

struct_aint combin(struct_aint a,struct_aint b){
    struct_aint rasp;
    rasp.pref_min=min(a.pref_min,a.sum+b.pref_min);
    rasp.pref_max=max(a.pref_max,a.sum+b.pref_max);
    rasp.sum=a.sum+b.sum;
    return rasp;
}

void update(int nod,int st,int dr,int poz,int a){
    if(st==dr){
        v[nod].sum=a;
        v[nod].pref_min=a;
        v[nod].pref_max=a;
        return ;
    }
    int mij=(st+dr)/2;
    if(mij>=poz) update(2*nod,st,mij,poz,a);
    else update(2*nod+1,mij+1,dr,poz,a);
    v[nod]=combin(v[2*nod],v[2*nod+1]);
}

signed main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    int n,i,poz,a;
    cin>>n;
    for(i=1;i<=n;i++){
        cin>>a>>poz;
        if(poz==1) update(1,1,n,n-a+1,-1);
        else update(1,1,n,n-a+1,1);
        if(v[1].pref_max<=0) cout<<">\n";
        else if(v[1].pref_min>=0) cout<<"<\n";
        else cout<<"?\n";
    }
    return 0;
}

Subtask #1
100.0 / 100.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 336 KB Output is correct
2 Correct 1 ms 336 KB Output is correct
3 Correct 1 ms 336 KB Output is correct
4 Correct 1 ms 336 KB Output is correct
5 Correct 1 ms 336 KB Output is correct
6 Correct 1 ms 336 KB Output is correct
7 Correct 2 ms 336 KB Output is correct
8 Correct 1 ms 508 KB Output is correct
9 Correct 1 ms 336 KB Output is correct
10 Correct 5 ms 3064 KB Output is correct
11 Correct 19 ms 5200 KB Output is correct
12 Correct 31 ms 7464 KB Output is correct
13 Correct 26 ms 7752 KB Output is correct
14 Correct 24 ms 7540 KB Output is correct
15 Correct 27 ms 7764 KB Output is correct
16 Correct 25 ms 7624 KB Output is correct
17 Correct 25 ms 7752 KB Output is correct
18 Correct 28 ms 7764 KB Output is correct
19 Correct 27 ms 7724 KB Output is correct
20 Correct 29 ms 7760 KB Output is correct
21 Correct 25 ms 7760 KB Output is correct
22 Correct 28 ms 7760 KB Output is correct
23 Correct 25 ms 7760 KB Output is correct
24 Correct 30 ms 7592 KB Output is correct
25 Correct 30 ms 7764 KB Output is correct