#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';
for (int i = 0; i < Q; ++i) {
std::cout << split[i + 1] - split[i];
for (int j = 0; j < K; ++j) {
std::cout << ' ' << std::upper_bound(list[j].begin(), list[j].end(), pair(split[i] + 1, 0))->second + 1;
}
std::cout << '\n';
}
return 0;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
212 KB |
n=4 |
2 |
Incorrect |
0 ms |
212 KB |
Integer 50 violates the range [1, 3] |
3 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
212 KB |
n=4 |
2 |
Incorrect |
0 ms |
212 KB |
Integer 50 violates the range [1, 3] |
3 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
212 KB |
n=4 |
2 |
Incorrect |
0 ms |
212 KB |
Integer 50 violates the range [1, 3] |
3 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
415 ms |
59364 KB |
n=1000000 |
2 |
Correct |
240 ms |
38148 KB |
n=666666 |
3 |
Correct |
129 ms |
22384 KB |
n=400000 |
4 |
Correct |
304 ms |
30332 KB |
n=285714 |
5 |
Correct |
6 ms |
1364 KB |
n=20000 |
6 |
Correct |
264 ms |
23844 KB |
n=181818 |
7 |
Correct |
3 ms |
852 KB |
n=10000 |
8 |
Correct |
32 ms |
2312 KB |
n=6666 |
9 |
Correct |
2 ms |
596 KB |
n=4000 |
10 |
Correct |
175 ms |
9720 KB |
n=2857 |
11 |
Correct |
1 ms |
468 KB |
n=2000 |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
212 KB |
n=4 |
2 |
Incorrect |
0 ms |
212 KB |
Integer 50 violates the range [1, 3] |
3 |
Halted |
0 ms |
0 KB |
- |