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Submission #893962

# Submission time Handle Problem Language Result Execution time Memory
893962 2023-12-27T17:51:13 Z abcvuitunggio Hiring (IOI09_hiring) C++17
73 / 100
 223 ms 14500 KB 
#include <bits/stdc++.h>
#define int long long
using namespace std;
struct T{
    int sum,cnt;
}st[80001];
int n,s[500001],q[500001],a[500001],w;
pair <int, int> res;
void update(int node, int l, int r, int i){
    if (l>i||r<i)
        return;
    if (l==r){
        st[node].sum+=l;
        st[node].cnt++;
        return;
    }
    int mid=(l+r)>>1;
    update(node<<1,l,mid,i);
    update(node<<1|1,mid+1,r,i);
    st[node].sum=st[node<<1].sum+st[node<<1|1].sum;
    st[node].cnt=st[node<<1].cnt+st[node<<1|1].cnt;
}
int get(int node, int l, int r, int val){
    if (l==r)
        return min(val/l,st[node].cnt);
    int mid=(l+r)>>1;
    return (st[node<<1].sum<val?st[node<<1].cnt+get(node<<1|1,mid+1,r,val-st[node<<1].sum):get(node<<1,l,mid,val));
}
int32_t main(){
    ios_base::sync_with_stdio(NULL);cin.tie(nullptr);
    cin >> n >> w;
    for (int i=1;i<=n;i++)
        cin >> s[i] >> q[i];
    iota(a,a+n+1,0);
    sort(a+1,a+n+1,[](int i, int j){return s[i]*q[j]<s[j]*q[i];});
    for (int j=1;j<=n;j++){
        int i=a[j];
        int lim=w*q[i]/s[i]-q[i];
        if (lim>=0)
            res=max(res,{get(1,1,20000,lim)+1,j});
        update(1,1,20000,q[i]);
    }
    cout << res.first << '\n';
    int j=a[res.second],lim=w*q[j]/s[j]-q[j];
    sort(a+1,a+res.second,[](int i, int j){return q[i]<q[j];});
    for (int i=1;i<res.second;i++){
        lim-=q[a[i]];
        if (lim<0)
            break;
        cout << a[i] << '\n';
    }
    cout << j << '\n';
}

Subtask #1
22.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 6492 KB Output is correct
2 Partially correct 1 ms 6492 KB Partially correct
3 Partially correct 1 ms 6492 KB Partially correct
4 Correct 1 ms 6492 KB Output is correct
5 Partially correct 1 ms 6488 KB Partially correct
6 Correct 2 ms 6748 KB Output is correct
7 Partially correct 1 ms 6492 KB Partially correct
8 Partially correct 2 ms 6492 KB Partially correct
9 Correct 3 ms 6748 KB Output is correct
10 Correct 3 ms 6748 KB Output is correct
11 Partially correct 3 ms 6864 KB Partially correct
12 Correct 3 ms 6492 KB Output is correct
13 Partially correct 5 ms 6748 KB Partially correct
14 Correct 6 ms 7000 KB Output is correct
15 Partially correct 8 ms 7004 KB Partially correct

Subtask #2
24.0 / 28.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 6492 KB Output is correct
2 Partially correct 1 ms 6492 KB Partially correct
3 Correct 1 ms 6488 KB Output is correct
4 Correct 9 ms 7000 KB Output is correct
5 Correct 20 ms 10844 KB Output is correct
6 Partially correct 161 ms 13692 KB Partially correct
7 Correct 149 ms 14164 KB Output is correct

Subtask #3
3.0 / 6.0

# Verdict Execution time Memory Grader output
1 Partially correct 1 ms 6748 KB Partially correct
2 Partially correct 2 ms 6556 KB Partially correct
3 Correct 1 ms 6744 KB Output is correct

Subtask #4
3.0 / 6.0

# Verdict Execution time Memory Grader output
1 Partially correct 1 ms 6748 KB Partially correct
2 Partially correct 1 ms 6748 KB Partially correct
3 Correct 2 ms 6744 KB Output is correct

Subtask #5
3.0 / 6.0

# Verdict Execution time Memory Grader output
1 Partially correct 2 ms 6748 KB Partially correct
2 Partially correct 1 ms 6748 KB Partially correct
3 Correct 1 ms 6748 KB Output is correct

Subtask #6
3.0 / 6.0

# Verdict Execution time Memory Grader output
1 Partially correct 71 ms 13392 KB Partially correct
2 Partially correct 64 ms 13648 KB Partially correct
3 Correct 53 ms 13396 KB Output is correct

Subtask #7
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 114 ms 13652 KB Output is correct
2 Correct 74 ms 13652 KB Output is correct
3 Correct 76 ms 13460 KB Output is correct

Subtask #8
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 195 ms 14164 KB Output is correct
2 Correct 191 ms 14232 KB Output is correct
3 Correct 192 ms 14112 KB Output is correct

Subtask #9
3.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 222 ms 14492 KB Output is correct
2 Partially correct 221 ms 14484 KB Partially correct
3 Correct 223 ms 14500 KB Output is correct