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Submission #726741

# Submission time Handle Problem Language Result Execution time Memory
726741 2023-04-19T09:53:42 Z fdnfksd Gift (IZhO18_nicegift) C++14
100 / 100
 822 ms 96456 KB 
#include<bits/stdc++.h>
#define TASKNAME "codeforce"
#define pb push_back
#define pli pair<ll,ll>
#define fi first
#define se second
#define fastio ios_base::sync_with_stdio(false); cin.tie(NULL);
using namespace std;
using ll=long long;
const ll maxN=2e6+10;
const ll inf=1e18;
const ll mod=1e9+7;
ll n,k,a[maxN];
void solve()
{
    cin >> n >> k;
    ll sum=0;
    for(int i=1;i<=n;i++)
    {
        cin >> a[i];
        sum+=a[i];
    }
   // if(sum<=1e5)
    {
        priority_queue<pli> pq;
        for(int i=1;i<=n;i++) pq.push({a[i],i});
        vector<pli> vc;
        vc.resize(k);
        vector<vector<ll>> ans;
        while(pq.size()>=k)
        {
            vector<ll> vd;
            ll mn=inf;
            for(int i=0;i<k;i++)
            {
                vc[i]=pq.top();
                pq.pop();
                mn=min(mn,vc[i].fi);
            }
            ll ers=mn;
            if(pq.size()>0) ers=min(ers,sum/k-pq.top().fi);
            sum-=k*ers;
            vd.pb(ers);
            for(int i=0;i<k;i++)
            {
                vc[i].fi-=ers;
                if(vc[i].fi>0) pq.push(vc[i]);
                vd.pb(vc[i].se);
            }
            ans.pb(vd);
        }
        if(sum==0)
        {
            cout << ans.size()<<'\n';
            for(auto vec:ans)
            {
                for(auto zz:vec) cout << zz<<' ';
                cout << '\n';
            }
        }
        else cout << -1;
    }
}
int main()
{
    fastio
    //freopen(TASKNAME".INP","r",stdin);
    //freopen(TASKNAME".OUT","w",stdout);
    solve();
}

Compilation message

nicegift.cpp: In function 'void solve()':
nicegift.cpp:30:24: warning: comparison of integer expressions of different signedness: 'std::priority_queue<std::pair<long long int, long long int> >::size_type' {aka 'long unsigned int'} and 'll' {aka 'long long int'} [-Wsign-compare]
   30 |         while(pq.size()>=k)
      |               ~~~~~~~~~^~~

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB n=4
2 Correct 1 ms 212 KB n=3
3 Correct 1 ms 212 KB n=3
4 Correct 1 ms 328 KB n=4
5 Correct 1 ms 324 KB n=4
6 Correct 1 ms 212 KB n=2

Subtask #2
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB n=4
2 Correct 1 ms 212 KB n=3
3 Correct 1 ms 212 KB n=3
4 Correct 1 ms 328 KB n=4
5 Correct 1 ms 324 KB n=4
6 Correct 1 ms 212 KB n=2
7 Correct 1 ms 212 KB n=5
8 Correct 1 ms 212 KB n=8
9 Correct 1 ms 328 KB n=14
10 Correct 1 ms 212 KB n=11
11 Correct 21 ms 3704 KB n=50000
12 Correct 23 ms 3400 KB n=50000
13 Correct 1 ms 212 KB n=10
14 Correct 1 ms 340 KB n=685
15 Correct 1 ms 340 KB n=623
16 Correct 1 ms 340 KB n=973

Subtask #3
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB n=4
2 Correct 1 ms 212 KB n=3
3 Correct 1 ms 212 KB n=3
4 Correct 1 ms 328 KB n=4
5 Correct 1 ms 324 KB n=4
6 Correct 1 ms 212 KB n=2
7 Correct 1 ms 212 KB n=5
8 Correct 1 ms 212 KB n=8
9 Correct 1 ms 328 KB n=14
10 Correct 1 ms 212 KB n=11
11 Correct 21 ms 3704 KB n=50000
12 Correct 23 ms 3400 KB n=50000
13 Correct 1 ms 212 KB n=10
14 Correct 1 ms 340 KB n=685
15 Correct 1 ms 340 KB n=623
16 Correct 1 ms 340 KB n=973
17 Correct 1 ms 340 KB n=989
18 Correct 1 ms 340 KB n=563
19 Correct 1 ms 340 KB n=592
20 Correct 1 ms 340 KB n=938
21 Correct 1 ms 340 KB n=747
22 Correct 1 ms 328 KB n=991

Subtask #4
19.0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 458 ms 65812 KB n=1000000
2 Correct 284 ms 40604 KB n=666666
3 Correct 160 ms 21960 KB n=400000
4 Correct 107 ms 14256 KB n=285714
5 Correct 7 ms 1368 KB n=20000
6 Correct 65 ms 8936 KB n=181818
7 Correct 4 ms 956 KB n=10000
8 Correct 3 ms 724 KB n=6666
9 Correct 2 ms 468 KB n=4000
10 Correct 3 ms 596 KB n=2857
11 Correct 1 ms 468 KB n=2000

Subtask #5
51.0 / 51.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB n=4
2 Correct 1 ms 212 KB n=3
3 Correct 1 ms 212 KB n=3
4 Correct 1 ms 328 KB n=4
5 Correct 1 ms 324 KB n=4
6 Correct 1 ms 212 KB n=2
7 Correct 1 ms 212 KB n=5
8 Correct 1 ms 212 KB n=8
9 Correct 1 ms 328 KB n=14
10 Correct 1 ms 212 KB n=11
11 Correct 21 ms 3704 KB n=50000
12 Correct 23 ms 3400 KB n=50000
13 Correct 1 ms 212 KB n=10
14 Correct 1 ms 340 KB n=685
15 Correct 1 ms 340 KB n=623
16 Correct 1 ms 340 KB n=973
17 Correct 1 ms 340 KB n=989
18 Correct 1 ms 340 KB n=563
19 Correct 1 ms 340 KB n=592
20 Correct 1 ms 340 KB n=938
21 Correct 1 ms 340 KB n=747
22 Correct 1 ms 328 KB n=991
23 Correct 458 ms 65812 KB n=1000000
24 Correct 284 ms 40604 KB n=666666
25 Correct 160 ms 21960 KB n=400000
26 Correct 107 ms 14256 KB n=285714
27 Correct 7 ms 1368 KB n=20000
28 Correct 65 ms 8936 KB n=181818
29 Correct 4 ms 956 KB n=10000
30 Correct 3 ms 724 KB n=6666
31 Correct 2 ms 468 KB n=4000
32 Correct 3 ms 596 KB n=2857
33 Correct 1 ms 468 KB n=2000
34 Correct 14 ms 2292 KB n=23514
35 Correct 14 ms 2276 KB n=23514
36 Correct 1 ms 328 KB n=940
37 Correct 0 ms 212 KB n=2
38 Correct 35 ms 5548 KB n=100000
39 Correct 35 ms 5608 KB n=100000
40 Correct 1 ms 212 KB n=10
41 Correct 1 ms 340 KB n=100
42 Correct 3 ms 520 KB n=1000
43 Correct 556 ms 86772 KB n=1000000
44 Correct 822 ms 96456 KB n=1000000
45 Correct 496 ms 63820 KB n=666666
46 Correct 308 ms 36216 KB n=400000
47 Correct 9 ms 1108 KB n=2336
48 Correct 532 ms 54716 KB n=285714
49 Correct 476 ms 45212 KB n=181818
50 Correct 24 ms 3016 KB n=40000
51 Correct 12 ms 1620 KB n=20000
52 Correct 8 ms 984 KB n=10000
53 Correct 47 ms 4400 KB n=6666
54 Correct 4 ms 596 KB n=4000
55 Correct 181 ms 16244 KB n=2857
56 Correct 3 ms 596 KB n=2000