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Submission #496640

# Submission time Handle Problem Language Result Execution time Memory
496640 2021-12-21T17:37:09 Z ergagan Gift (IZhO18_nicegift) C++17
30 / 100
 43 ms 14636 KB 
//я так много думал, что опять попал
#include <bits/stdc++.h>
#define all(x) x.begin(),x.end()
#define pb push_back
#define ppb pop_back
#define pf push_front
#define ppf pop_front
#define f first
#define s second
#define left(v) v + v
#define right(v) v + v + 1
#define ub upper_bound
#define lb lower_bound

using namespace std;
typedef long long ll;

//17 SEVENTEEN
const long double Pi = acos(-1.0);
const ll dx[] = {0,0,1,-1};
const ll dy[] = {1,-1,0,0};
const ll N = (ll) 1e5 + 17;
const ll M = (ll) 5e3 + 69;
const ll inf = (ll) 1e14 + 3;
const ll mod = (ll) 1e9 + 7;
ll sq(ll x) { return x * x; }

ll zxc = 1, a[N];

multiset<pair<ll, ll> > st;
vector<vector<pair<ll, ll> > > ans;

void solve() {

    ll n, k;
    cin >> n >> k;

    for(ll i = 1; i <= n; i++) {
        cin >> a[i];
        st.insert({a[i], i});
    }

    while(k <= st.size()) {

        ll cnt = 0;
        vector<pair<ll, ll> > v;

        while(v.size() < k) {
            pair<ll,ll> x = *st.rbegin();
            x.f--, v.pb(x);
            st.erase(st.find(*st.rbegin()));
        }

        for(auto x : v) {
            if(x.f) st.insert(x);
        }
        ans.pb(v);
    }

    if(!st.empty()) { cout << "-1\n"; return; }

    cout << ans.size() << "\n";
    for(auto v : ans) {
        cout << "1 ";
        for(auto x : v) cout << x.s << " ";
        cout << "\n";
    }
}

int main(/*Уверенно*/) {
ios_base::sync_with_stdio(0);
    cin.tie(0);
/*
	freopen(".in", "r", stdin);
	freopen(".out", "w", stdout);
*/
//    cin >> zxc;
    while(zxc--) {
        solve();
    }
  	return 0;
}
// さよならさ いかなくちゃ

Compilation message

nicegift.cpp: In function 'void solve()':
nicegift.cpp:43:13: warning: comparison of integer expressions of different signedness: 'll' {aka 'long long int'} and 'std::multiset<std::pair<long long int, long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   43 |     while(k <= st.size()) {
      |           ~~^~~~~~~~~~~~
nicegift.cpp:48:24: warning: comparison of integer expressions of different signedness: 'std::vector<std::pair<long long int, long long int> >::size_type' {aka 'long unsigned int'} and 'll' {aka 'long long int'} [-Wsign-compare]
   48 |         while(v.size() < k) {
      |               ~~~~~~~~~^~~
nicegift.cpp:45:12: warning: unused variable 'cnt' [-Wunused-variable]
   45 |         ll cnt = 0;
      |            ^~~

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB n=4
2 Correct 0 ms 204 KB n=3
3 Correct 1 ms 204 KB n=3
4 Correct 0 ms 320 KB n=4
5 Correct 1 ms 316 KB n=4
6 Correct 1 ms 204 KB n=2

Subtask #2
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB n=4
2 Correct 0 ms 204 KB n=3
3 Correct 1 ms 204 KB n=3
4 Correct 0 ms 320 KB n=4
5 Correct 1 ms 316 KB n=4
6 Correct 1 ms 204 KB n=2
7 Correct 1 ms 328 KB n=5
8 Correct 3 ms 964 KB n=8
9 Correct 8 ms 1412 KB n=14
10 Correct 4 ms 1100 KB n=11
11 Correct 43 ms 6932 KB n=50000
12 Correct 42 ms 6928 KB n=50000
13 Correct 22 ms 4224 KB n=10
14 Correct 24 ms 3712 KB n=685
15 Correct 26 ms 3992 KB n=623
16 Correct 18 ms 2464 KB n=973

Subtask #3
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB n=4
2 Correct 0 ms 204 KB n=3
3 Correct 1 ms 204 KB n=3
4 Correct 0 ms 320 KB n=4
5 Correct 1 ms 316 KB n=4
6 Correct 1 ms 204 KB n=2
7 Correct 1 ms 328 KB n=5
8 Correct 3 ms 964 KB n=8
9 Correct 8 ms 1412 KB n=14
10 Correct 4 ms 1100 KB n=11
11 Correct 43 ms 6932 KB n=50000
12 Correct 42 ms 6928 KB n=50000
13 Correct 22 ms 4224 KB n=10
14 Correct 24 ms 3712 KB n=685
15 Correct 26 ms 3992 KB n=623
16 Correct 18 ms 2464 KB n=973
17 Correct 27 ms 3556 KB n=989
18 Correct 15 ms 1588 KB n=563
19 Correct 30 ms 2460 KB n=592
20 Correct 22 ms 2372 KB n=938
21 Correct 16 ms 1992 KB n=747
22 Correct 18 ms 2124 KB n=991

Subtask #4
0 / 19.0

# Verdict Execution time Memory Grader output
1 Runtime error 36 ms 14636 KB Execution killed with signal 11
2 Halted 0 ms 0 KB -

Subtask #5
0 / 51.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB n=4
2 Correct 0 ms 204 KB n=3
3 Correct 1 ms 204 KB n=3
4 Correct 0 ms 320 KB n=4
5 Correct 1 ms 316 KB n=4
6 Correct 1 ms 204 KB n=2
7 Correct 1 ms 328 KB n=5
8 Correct 3 ms 964 KB n=8
9 Correct 8 ms 1412 KB n=14
10 Correct 4 ms 1100 KB n=11
11 Correct 43 ms 6932 KB n=50000
12 Correct 42 ms 6928 KB n=50000
13 Correct 22 ms 4224 KB n=10
14 Correct 24 ms 3712 KB n=685
15 Correct 26 ms 3992 KB n=623
16 Correct 18 ms 2464 KB n=973
17 Correct 27 ms 3556 KB n=989
18 Correct 15 ms 1588 KB n=563
19 Correct 30 ms 2460 KB n=592
20 Correct 22 ms 2372 KB n=938
21 Correct 16 ms 1992 KB n=747
22 Correct 18 ms 2124 KB n=991
23 Runtime error 36 ms 14636 KB Execution killed with signal 11
24 Halted 0 ms 0 KB -