oj.uz

Submission #80600

# Submission time Handle Problem Language Result Execution time Memory
80600 2018-10-21T15:52:28 Z inom Gift (IZhO18_nicegift) C++14
7 / 100
 2000 ms 2552 KB 
#include <bits/stdc++.h>
 
#define fi first
#define se second
#define pb push_back
#define sz(c) (int)(c).size()
#define all(c) (c).begin(), (c).end()
#define in freopen("input.txt", "r", stdin);
#define out freopen("output.txt", "w", stdout);

using namespace std;
  
const int N = 2 * 1e5 + 10;
const int MOD = 1e9 + 7;
const int INF = 1e9;

int TN = 1;

int n, k;
pair<int, int> a[N];
vector<vector<int>> ans;

void solve() {
    cin >> n >> k;
    for (int i = 1; i <= n; i++) {
        cin >> a[i].fi;
        a[i].se = i;
    }
    while (true) {
        sort(a + 1, a + 1 +n, [](pair<int, int> x, pair<int, int> y) {
            if (x.fi > y.fi) {
                return true;
            }
            else if (x.fi < y.fi) {
                return false;
            }
            else {
                if (x.se < y.se) {
                    return true;
                }
                else {
                    return false;
                }
            }
        });
        bool can = true;
        for (int i = 1; i <= k; i++) {
            if (a[i].fi == 0) {
                can = false; break;
            }
        }
        if (!can) {
            break;
        }
        int x = 1;
        vector<int> cur; cur.pb(1);
        for (int i = 1; i <= k; i++) {
            a[i].fi--;
            cur.pb(a[i].se);
        }
        ans.pb(cur);
    }
    for (int i = 1; i <= n; i++) {
        if (a[i].fi > 0) {
            cout << -1 << "\n"; return;
        }
    }
    cout << sz(ans) << "\n";
    for (auto i: ans) {
        for (auto j: i) {
            cout << j << " ";
        }
        cout << endl;
    }
    return;
}

signed main() {
    // ios_base::sync_with_stdio(0);
    // in; out; 
    // cin >> TN;
    while (TN--) solve();
    return 0;
 }

Compilation message

nicegift.cpp: In function 'void solve()':
nicegift.cpp:55:13: warning: unused variable 'x' [-Wunused-variable]
         int x = 1;
             ^

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 480 KB n=4
2 Correct 2 ms 644 KB n=3
3 Correct 3 ms 644 KB n=3
4 Correct 2 ms 644 KB n=4
5 Correct 2 ms 644 KB n=4
6 Correct 2 ms 644 KB n=2

Subtask #2
0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 480 KB n=4
2 Correct 2 ms 644 KB n=3
3 Correct 3 ms 644 KB n=3
4 Correct 2 ms 644 KB n=4
5 Correct 2 ms 644 KB n=4
6 Correct 2 ms 644 KB n=2
7 Correct 2 ms 644 KB n=5
8 Correct 5 ms 1392 KB n=8
9 Correct 34 ms 1608 KB n=14
10 Correct 22 ms 1608 KB n=11
11 Execution timed out 2021 ms 1608 KB Time limit exceeded
12 Halted 0 ms 0 KB -

Subtask #3
0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 480 KB n=4
2 Correct 2 ms 644 KB n=3
3 Correct 3 ms 644 KB n=3
4 Correct 2 ms 644 KB n=4
5 Correct 2 ms 644 KB n=4
6 Correct 2 ms 644 KB n=2
7 Correct 2 ms 644 KB n=5
8 Correct 5 ms 1392 KB n=8
9 Correct 34 ms 1608 KB n=14
10 Correct 22 ms 1608 KB n=11
11 Execution timed out 2021 ms 1608 KB Time limit exceeded
12 Halted 0 ms 0 KB -

Subtask #4
0 / 19.0

# Verdict Execution time Memory Grader output
1 Execution timed out 2005 ms 2552 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #5
0 / 51.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 480 KB n=4
2 Correct 2 ms 644 KB n=3
3 Correct 3 ms 644 KB n=3
4 Correct 2 ms 644 KB n=4
5 Correct 2 ms 644 KB n=4
6 Correct 2 ms 644 KB n=2
7 Correct 2 ms 644 KB n=5
8 Correct 5 ms 1392 KB n=8
9 Correct 34 ms 1608 KB n=14
10 Correct 22 ms 1608 KB n=11
11 Execution timed out 2021 ms 1608 KB Time limit exceeded
12 Halted 0 ms 0 KB -