oj.uz

Submission #90928

# Submission time Handle Problem Language Result Execution time Memory
90928 2018-12-25T08:43:20 Z toloraia Gift (IZhO18_nicegift) C++17
0 / 100
 2000 ms 75648 KB 
#include <bits/stdc++.h>
#define ll long long
#define pb push_back
#define F first
#define S second

using namespace std;

const ll N = 5e5 + 5, INF = 1e9 + 5;

ll n, k;
pair < ll, ll > P[N];
ll nn;
vector < ll > V[N], v;
ll S;

main()
{
    ios::sync_with_stdio(false);
    cin>>n>>k;
    for (ll i = 1; i <= n; i++){
        cin>>P[i].F;
        P[i].S = i;
        S += P[i].F;
    }
    sort (P + 1, P + n + 1);
    reverse (P + 1, P + n + 1);
    /*if (S <= 1e5){
        while (P[k].F > 0){
            ll I1 = k, I2 = k;
            for (ll i = 20; i >= 0; i--){
                if (I1 - (1<<i) <= 0)
                    continue;
                if (P[I1 - (1<<i)].F == P[k].F)
                    I1 -= (1<<i);
            }
            for (ll i = 20; i >= 0; i--){
                if (I2 + (1<<i) > n)
                    continue;
                if (P[I2 + (1<<i)].F == P[k].F)
                    I2 += (1<<i);
            }
            v.clear();
            for (ll i = 1; i < I1; i++){
                v.pb (P[i].S);
                P[i].F--;
            }
            for (ll i = I2; (ll)v.size() < k; i--){
                v.pb (P[i].S);
                P[i].F--;
            }
            V[++nn] = v;
        }
        if (P[1].F > 0){
            cout<<-1<<endl;
            return 0;
        }
        cout<<nn<<endl;
        for (ll i = 1; i <= nn; i++){
            cout<<"1 ";
            for (ll j = 0; j < k; j++)
                cout<<V[i][j]<<" ";
            cout<<endl;
        }
        return 0;
    }*/
    if (P[1].F == P[n].F){
        ll m = __gcd (P[1].F, m);
        ll d = k / m;
        if (n % d != 0){
            cout<<-1<<endl;
            return 0;
        }
        ll p = P[1].F / m;
        /*if (n * m > 3e6){
            assert(0);
            return 0;
        }*/
        cout<<n / d<<endl;
        for (ll i = 1; i <= n; i += d){
            cout<<p<<" ";
            for (ll j = i; j < i + k; j++)
                cout<<(j - 1) % n + 1<<" ";
            cout<<endl;
        }
        return 0;
    }
    return 0;
}

Compilation message

nicegift.cpp:17:6: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
 main()
      ^
nicegift.cpp: In function 'int main()':
nicegift.cpp:74:12: warning: '__n' may be used uninitialized in this function [-Wmaybe-uninitialized]
         ll p = P[1].F / m;
            ^

Subtask #1
0 / 7.0

# Verdict Execution time Memory Grader output
1 Incorrect 10 ms 12152 KB Unexpected end of file - int32 expected
2 Halted 0 ms 0 KB -

Subtask #2
0 / 11.0

# Verdict Execution time Memory Grader output
1 Incorrect 10 ms 12152 KB Unexpected end of file - int32 expected
2 Halted 0 ms 0 KB -

Subtask #3
0 / 12.0

# Verdict Execution time Memory Grader output
1 Incorrect 10 ms 12152 KB Unexpected end of file - int32 expected
2 Halted 0 ms 0 KB -

Subtask #4
0 / 19.0

# Verdict Execution time Memory Grader output
1 Execution timed out 2048 ms 75648 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #5
0 / 51.0

# Verdict Execution time Memory Grader output
1 Incorrect 10 ms 12152 KB Unexpected end of file - int32 expected
2 Halted 0 ms 0 KB -