| Task: | Tikut |
| Sender: | zli0122 |
| Submission time: | 2024-11-10 22:22:29 +0200 |
| Language: | C++ (C++11) |
| Status: | READY |
| Result: | 7 |
| group | verdict | score |
|---|---|---|
| #1 | ACCEPTED | 7 |
| #2 | TIME LIMIT EXCEEDED | 0 |
| #3 | TIME LIMIT EXCEEDED | 0 |
| #4 | TIME LIMIT EXCEEDED | 0 |
| #5 | TIME LIMIT EXCEEDED | 0 |
| #6 | TIME LIMIT EXCEEDED | 0 |
| test | verdict | time | group | |
|---|---|---|---|---|
| #1 | ACCEPTED | 0.00 s | 1, 3, 4, 5, 6 | details |
| #2 | ACCEPTED | 0.01 s | 1, 4, 5, 6 | details |
| #3 | ACCEPTED | 0.01 s | 1, 4, 5, 6 | details |
| #4 | ACCEPTED | 0.01 s | 1, 4, 5, 6 | details |
| #5 | TIME LIMIT EXCEEDED | -- | 2, 5, 6 | details |
| #6 | TIME LIMIT EXCEEDED | -- | 2, 5, 6 | details |
| #7 | TIME LIMIT EXCEEDED | -- | 3, 5, 6 | details |
| #8 | ACCEPTED | 0.00 s | 3, 5, 6 | details |
| #9 | TIME LIMIT EXCEEDED | -- | 3, 5, 6 | details |
| #10 | TIME LIMIT EXCEEDED | -- | 3, 5, 6 | details |
| #11 | TIME LIMIT EXCEEDED | -- | 3, 5, 6 | details |
| #12 | TIME LIMIT EXCEEDED | -- | 4, 5, 6 | details |
| #13 | TIME LIMIT EXCEEDED | -- | 4, 5, 6 | details |
| #14 | TIME LIMIT EXCEEDED | -- | 4, 5, 6 | details |
| #15 | TIME LIMIT EXCEEDED | -- | 4, 5, 6 | details |
| #16 | ACCEPTED | 0.02 s | 5, 6 | details |
| #17 | TIME LIMIT EXCEEDED | -- | 5, 6 | details |
| #18 | TIME LIMIT EXCEEDED | -- | 5, 6 | details |
| #19 | TIME LIMIT EXCEEDED | -- | 5, 6 | details |
| #20 | TIME LIMIT EXCEEDED | -- | 6 | details |
| #21 | TIME LIMIT EXCEEDED | -- | 6 | details |
| #22 | TIME LIMIT EXCEEDED | -- | 6 | details |
Code
#include <bits/stdc++.h>
#define INF INT32_MAX/2 + 1;
using namespace std;
int N, M;
vector<vector<int>> generate_sequences(int l, int k) {
if (l == 1) {
if (k > 0) return {{k}};
return {};
}
vector<vector<int>> sequences;
for (int i = 1; i <= k - l + 1; i++){
for (auto current: generate_sequences(l - 1, k - i)) {
current.push_back(i);
sequences.push_back(current);
}
}
return sequences;
}
int main() {
cin >> N >> M;
int a;
vector<int> pieces(N, 1);
vector<int> s;
vector<int> m(N);
for (int _ = 0; _ < N; _++) {
cin >> a;
s.push_back(a);
}
sort(s.rbegin(), s.rend());
int global_min = s.back();
for (int i = 0; i < N; i++) m[i]=s[i];
//for (auto i: s) cout << i << " ";cout << endl;
int max_index, max_value, minmax, maxmin, d1, d2;
int prev_d = INF;
for (int k = 1; k <= M; k++) {
// find the index of the two cuts maximizing min and minimizing max respectively
minmax = maxmin = 0;
for (int i = 0; i < N; i++) {
if (m[i] > m[minmax]) minmax = i;
if (s[i]*(pieces[maxmin] + 1) > s[maxmin]*(pieces[i] + 1)) maxmin = i;
}
// find max_value among the sticks after we minimize max.
max_index = minmax ^ 1;
max_value = (s[minmax]-1)/(pieces[minmax]+1) + 1;
for (int i = 0; i < N; i++) {
if (i == minmax) continue;
if (m[i] >= m[max_index] and m[i] > max_value) {
max_index = i;
max_value = m[max_index];
}
}
d1 = max_value - min(global_min, s[minmax]/(pieces[minmax]+1));
// find max_value among the sticks after we minimize max.
max_index = maxmin ^ 1;
max_value = (s[maxmin]-1)/(pieces[maxmin]+1) + 1;
for (int i = 0; i < N; i++) {
if (i == maxmin) continue;
if (m[i] >= m[max_index] and m[i] > max_value) {
max_index = i;
max_value = m[max_index];
}
}
d2 = max_value - min(global_min, s[maxmin]/(pieces[maxmin]+1));
if (d1 > d2) minmax = maxmin;
if (prev_d > min(d1, d2)) prev_d = min(d1, d2);
// otherwise we should try complete search to get out of local optimum trap.
else {
prev_d = min(d1, d2);
for (auto pieces : generate_sequences(N, N+k)) {
int max_val = 0;
int min_val = INF;
for (int i = 0; i < N; i++) {
max_val = max(max_val, (s[i]-1)/pieces[i] + 1);
min_val = min(min_val, s[i]/pieces[i]);
}
prev_d = min(prev_d, max_val-min_val);
}
}
cout << prev_d << " ";
// cut the piece
pieces[minmax]++;
m[minmax] = (s[minmax]-1)/pieces[minmax] + 1;
global_min = min(global_min, s[minmax]/pieces[minmax]);
}
cout << "\n";
}
Test details
Test 1
Group: 1, 3, 4, 5, 6
Verdict: ACCEPTED
| input |
|---|
| 1 1 6 |
| correct output |
|---|
| 0 |
| user output |
|---|
| 0 |
Test 2
Group: 1, 4, 5, 6
Verdict: ACCEPTED
| input |
|---|
| 5 10 4 8 6 2 7 |
| correct output |
|---|
| 5 4 2 2 2 1 1 1 1 1 |
| user output |
|---|
| 5 4 2 2 2 1 1 1 1 1 |
Test 3
Group: 1, 4, 5, 6
Verdict: ACCEPTED
| input |
|---|
| 5 10 5 5 8 6 7 |
| correct output |
|---|
| 3 3 2 3 2 2 1 1 1 2 |
| user output |
|---|
| 3 3 2 3 2 2 1 1 1 2 |
Test 4
Group: 1, 4, 5, 6
Verdict: ACCEPTED
| input |
|---|
| 5 10 8 7 9 6 10 |
| correct output |
|---|
| 4 4 3 3 2 2 1 2 2 1 |
| user output |
|---|
| 4 4 3 3 2 2 1 2 2 1 |
Test 5
Group: 2, 5, 6
Verdict: TIME LIMIT EXCEEDED
| input |
|---|
| 1000 1071 3 2 3 1 3 3 2 3 2 3 2 2 2 1 2 ... |
| correct output |
|---|
| 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 ... |
| user output |
|---|
| (empty) |
Test 6
Group: 2, 5, 6
Verdict: TIME LIMIT EXCEEDED
| input |
|---|
| 1000 1500 3 2 2 3 2 3 2 2 2 3 2 2 3 3 3 ... |
| correct output |
|---|
| 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 ... |
| user output |
|---|
| (empty) |
Test 7
Group: 3, 5, 6
Verdict: TIME LIMIT EXCEEDED
| input |
|---|
| 1000 2 15 710 210 347 398 66 318 277 ... |
| correct output |
|---|
| 994 994 |
| user output |
|---|
| (empty) |
Test 8
Group: 3, 5, 6
Verdict: ACCEPTED
| input |
|---|
| 1000 2 743 890 592 942 736 969 616 50... |
| correct output |
|---|
| 498 496 |
| user output |
|---|
| 498 496 |
Test 9
Group: 3, 5, 6
Verdict: TIME LIMIT EXCEEDED
| input |
|---|
| 1000 2 987 968 920 994 988 918 914 95... |
| correct output |
|---|
| 500 500 |
| user output |
|---|
| (empty) |
Test 10
Group: 3, 5, 6
Verdict: TIME LIMIT EXCEEDED
| input |
|---|
| 1000 2 996 1000 998 998 999 997 997 9... |
| correct output |
|---|
| 500 500 |
| user output |
|---|
| (empty) |
Test 11
Group: 3, 5, 6
Verdict: TIME LIMIT EXCEEDED
| input |
|---|
| 1000 2 501 501 501 501 501 501 501 50... |
| correct output |
|---|
| 1 168 |
| user output |
|---|
| (empty) |
Test 12
Group: 4, 5, 6
Verdict: TIME LIMIT EXCEEDED
| input |
|---|
| 100 200 145 136 74 83 73 36 196 115 11... |
| correct output |
|---|
| 194 190 189 183 182 181 181 17... |
| user output |
|---|
| (empty) |
Test 13
Group: 4, 5, 6
Verdict: TIME LIMIT EXCEEDED
| input |
|---|
| 100 200 157 110 168 155 192 107 146 15... |
| correct output |
|---|
| 95 96 96 95 93 94 94 94 90 91 ... |
| user output |
|---|
| (empty) |
Test 14
Group: 4, 5, 6
Verdict: TIME LIMIT EXCEEDED
| input |
|---|
| 50 200 137 118 160 118 146 160 140 18... |
| correct output |
|---|
| 98 98 98 96 90 91 88 88 84 86 ... |
| user output |
|---|
| (empty) |
Test 15
Group: 4, 5, 6
Verdict: TIME LIMIT EXCEEDED
| input |
|---|
| 100 200 147 174 186 148 155 128 158 18... |
| correct output |
|---|
| 99 99 98 98 97 97 96 96 95 95 ... |
| user output |
|---|
| (empty) |
Test 16
Group: 5, 6
Verdict: ACCEPTED
| input |
|---|
| 1000 2000 928772177 816188227 216592201 ... |
| correct output |
|---|
| 991676844 990940224 990685481 ... |
| user output |
|---|
| 991676844 990940224 990685481 ... |
Test 17
Group: 5, 6
Verdict: TIME LIMIT EXCEEDED
| input |
|---|
| 1000 2000 665759876 597950008 615453266 ... |
| correct output |
|---|
| 498801198 498681904 498504321 ... |
| user output |
|---|
| (empty) |
Test 18
Group: 5, 6
Verdict: TIME LIMIT EXCEEDED
| input |
|---|
| 500 2000 683288817 784230412 626685186 ... |
| correct output |
|---|
| 497667621 498434895 495465990 ... |
| user output |
|---|
| (empty) |
Test 19
Group: 5, 6
Verdict: TIME LIMIT EXCEEDED
| input |
|---|
| 1000 2000 666667000 809309500 571572000 ... |
| correct output |
|---|
| 499499500 499249250 498999000 ... |
| user output |
|---|
| (empty) |
Test 20
Group: 6
Verdict: TIME LIMIT EXCEEDED
| input |
|---|
| 100000 200000 861772559 734298084 983382252 ... |
| correct output |
|---|
| 499973914 499985299 499985141 ... |
| user output |
|---|
| (empty) |
Test 21
Group: 6
Verdict: TIME LIMIT EXCEEDED
| input |
|---|
| 30000 200000 691834579 617419813 514778075 ... |
| correct output |
|---|
| 499967533 499976270 499969810 ... |
| user output |
|---|
| (empty) |
Test 22
Group: 6
Verdict: TIME LIMIT EXCEEDED
| input |
|---|
| 100000 200000 820255000 960780000 741965000 ... |
| correct output |
|---|
| 499995000 499992500 499990000 ... |
| user output |
|---|
| (empty) |
