#include <bits/stdc++.h>
using ll = long long;
using std::vector;
using std::array;
using std::pair;
using std::tuple;
int main() {
std::ios_base::sync_with_stdio(false);
std::cin.tie(nullptr);
int N, K;
std::cin >> N >> K;
vector<ll> A(N);
for (auto& x : A) {
std::cin >> x;
}
const ll sum = std::accumulate(A.begin(), A.end(), 0ll);
const ll max = *std::max_element(A.begin(), A.end());
const ll turn = sum / K;
if (sum % K != 0 or max > turn) {
std::cout << "-1\n";
return 0;
}
ll cur = 0;
vector<vector<pair<ll, int>>> list = {{}};
vector<ll> split = {0, turn};
split.reserve(N + 2);
for (int i = 0; i < N; ++i) {
cur += A[i];
if (cur >= turn) {
cur -= turn;
list.back().emplace_back(turn, i);
list.emplace_back();
}
list.back().emplace_back(cur, i);
split.push_back(cur);
}
std::sort(split.begin(), split.end());
split.erase(std::unique(split.begin(), split.end()), split.end());
const int Q = (int)split.size() - 1;
std::cout << Q << '\n';
vector<int> idx(K);
for (int i = 0; i < Q; ++i) {
std::cout << split[i + 1] - split[i];
for (int j = 0; j < K; ++j) {
while (list[j][idx[j]].first <= split[i]) {
idx[j] += 1;
}
std::cout << ' ' << list[j][idx[j]].second + 1;
}
std::cout << '\n';
}
return 0;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
212 KB |
n=4 |
2 |
Correct |
1 ms |
212 KB |
n=3 |
3 |
Correct |
0 ms |
212 KB |
n=3 |
4 |
Correct |
0 ms |
212 KB |
n=4 |
5 |
Correct |
0 ms |
212 KB |
n=4 |
6 |
Correct |
1 ms |
212 KB |
n=2 |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
212 KB |
n=4 |
2 |
Correct |
1 ms |
212 KB |
n=3 |
3 |
Correct |
0 ms |
212 KB |
n=3 |
4 |
Correct |
0 ms |
212 KB |
n=4 |
5 |
Correct |
0 ms |
212 KB |
n=4 |
6 |
Correct |
1 ms |
212 KB |
n=2 |
7 |
Correct |
0 ms |
212 KB |
n=5 |
8 |
Correct |
1 ms |
212 KB |
n=8 |
9 |
Correct |
1 ms |
212 KB |
n=14 |
10 |
Correct |
0 ms |
212 KB |
n=11 |
11 |
Correct |
15 ms |
3020 KB |
n=50000 |
12 |
Correct |
16 ms |
2640 KB |
n=50000 |
13 |
Correct |
0 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 |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
212 KB |
n=4 |
2 |
Correct |
1 ms |
212 KB |
n=3 |
3 |
Correct |
0 ms |
212 KB |
n=3 |
4 |
Correct |
0 ms |
212 KB |
n=4 |
5 |
Correct |
0 ms |
212 KB |
n=4 |
6 |
Correct |
1 ms |
212 KB |
n=2 |
7 |
Correct |
0 ms |
212 KB |
n=5 |
8 |
Correct |
1 ms |
212 KB |
n=8 |
9 |
Correct |
1 ms |
212 KB |
n=14 |
10 |
Correct |
0 ms |
212 KB |
n=11 |
11 |
Correct |
15 ms |
3020 KB |
n=50000 |
12 |
Correct |
16 ms |
2640 KB |
n=50000 |
13 |
Correct |
0 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 |
324 KB |
n=563 |
19 |
Correct |
1 ms |
340 KB |
n=592 |
20 |
Correct |
2 ms |
340 KB |
n=938 |
21 |
Correct |
1 ms |
324 KB |
n=747 |
22 |
Correct |
3 ms |
340 KB |
n=991 |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
373 ms |
45920 KB |
n=1000000 |
2 |
Correct |
195 ms |
29216 KB |
n=666666 |
3 |
Correct |
120 ms |
17008 KB |
n=400000 |
4 |
Correct |
249 ms |
26708 KB |
n=285714 |
5 |
Correct |
6 ms |
1316 KB |
n=20000 |
6 |
Correct |
214 ms |
21624 KB |
n=181818 |
7 |
Correct |
5 ms |
852 KB |
n=10000 |
8 |
Correct |
27 ms |
2236 KB |
n=6666 |
9 |
Correct |
2 ms |
596 KB |
n=4000 |
10 |
Correct |
144 ms |
9804 KB |
n=2857 |
11 |
Correct |
2 ms |
468 KB |
n=2000 |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
212 KB |
n=4 |
2 |
Correct |
1 ms |
212 KB |
n=3 |
3 |
Correct |
0 ms |
212 KB |
n=3 |
4 |
Correct |
0 ms |
212 KB |
n=4 |
5 |
Correct |
0 ms |
212 KB |
n=4 |
6 |
Correct |
1 ms |
212 KB |
n=2 |
7 |
Correct |
0 ms |
212 KB |
n=5 |
8 |
Correct |
1 ms |
212 KB |
n=8 |
9 |
Correct |
1 ms |
212 KB |
n=14 |
10 |
Correct |
0 ms |
212 KB |
n=11 |
11 |
Correct |
15 ms |
3020 KB |
n=50000 |
12 |
Correct |
16 ms |
2640 KB |
n=50000 |
13 |
Correct |
0 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 |
324 KB |
n=563 |
19 |
Correct |
1 ms |
340 KB |
n=592 |
20 |
Correct |
2 ms |
340 KB |
n=938 |
21 |
Correct |
1 ms |
324 KB |
n=747 |
22 |
Correct |
3 ms |
340 KB |
n=991 |
23 |
Correct |
373 ms |
45920 KB |
n=1000000 |
24 |
Correct |
195 ms |
29216 KB |
n=666666 |
25 |
Correct |
120 ms |
17008 KB |
n=400000 |
26 |
Correct |
249 ms |
26708 KB |
n=285714 |
27 |
Correct |
6 ms |
1316 KB |
n=20000 |
28 |
Correct |
214 ms |
21624 KB |
n=181818 |
29 |
Correct |
5 ms |
852 KB |
n=10000 |
30 |
Correct |
27 ms |
2236 KB |
n=6666 |
31 |
Correct |
2 ms |
596 KB |
n=4000 |
32 |
Correct |
144 ms |
9804 KB |
n=2857 |
33 |
Correct |
2 ms |
468 KB |
n=2000 |
34 |
Correct |
15 ms |
1620 KB |
n=23514 |
35 |
Correct |
11 ms |
1620 KB |
n=23514 |
36 |
Correct |
1 ms |
316 KB |
n=940 |
37 |
Correct |
1 ms |
320 KB |
n=2 |
38 |
Correct |
61 ms |
6836 KB |
n=100000 |
39 |
Correct |
73 ms |
6944 KB |
n=100000 |
40 |
Correct |
0 ms |
212 KB |
n=10 |
41 |
Correct |
1 ms |
340 KB |
n=100 |
42 |
Correct |
5 ms |
468 KB |
n=1000 |
43 |
Correct |
400 ms |
61148 KB |
n=1000000 |
44 |
Correct |
520 ms |
57668 KB |
n=1000000 |
45 |
Correct |
360 ms |
42864 KB |
n=666666 |
46 |
Correct |
284 ms |
30884 KB |
n=400000 |
47 |
Correct |
147 ms |
9492 KB |
n=2336 |
48 |
Correct |
254 ms |
26748 KB |
n=285714 |
49 |
Correct |
210 ms |
21604 KB |
n=181818 |
50 |
Correct |
165 ms |
13608 KB |
n=40000 |
51 |
Correct |
155 ms |
12024 KB |
n=20000 |
52 |
Correct |
146 ms |
10552 KB |
n=10000 |
53 |
Correct |
147 ms |
10408 KB |
n=6666 |
54 |
Correct |
141 ms |
9884 KB |
n=4000 |
55 |
Correct |
163 ms |
9784 KB |
n=2857 |
56 |
Correct |
139 ms |
9168 KB |
n=2000 |