結果
| 問題 | No.2869 yuusaan's Knapsacks |
| コンテスト | |
| ユーザー |
|
| 提出日時 | 2024-07-17 10:31:26 |
| 言語 | C++23 (gcc 15.2.0 + boost 1.89.0) |
| 結果 |
WA
|
| 実行時間 | - |
| コード長 | 2,721 bytes |
| 記録 | |
| コンパイル時間 | 2,433 ms |
| コンパイル使用メモリ | 349,504 KB |
| 実行使用メモリ | 11,296 KB |
| 最終ジャッジ日時 | 2026-04-03 20:01:30 |
| 合計ジャッジ時間 | 8,689 ms |
|
ジャッジサーバーID (参考情報) |
judge2_0 / judge2_0 |
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| ファイルパターン | 結果 |
|---|---|
| sample | WA * 1 TLE * 1 -- * 1 |
| other | -- * 27 |
コンパイルメッセージ
main.cpp: In function 'std::pair<int, int> pairmax(std::pair<int, int>, std::pair<int, int>, int)':
main.cpp:19:1: warning: no return statement in function returning non-void [-Wreturn-type]
19 | }
| ^
In file included from /home/linuxbrew/.linuxbrew/Cellar/gcc/15.2.0_1/include/c++/15/vector:67,
from /home/linuxbrew/.linuxbrew/Cellar/gcc/15.2.0_1/include/c++/15/functional:66,
from /home/linuxbrew/.linuxbrew/Cellar/gcc/15.2.0_1/include/c++/15/x86_64-pc-linux-gnu/bits/stdc++.h:55,
from main.cpp:1:
In function '_ForwardIterator std::uninitialized_copy(_InputIterator, _InputIterator, _ForwardIterator) [with _InputIterator = int*; _ForwardIterator = int*]',
inlined from 'constexpr _ForwardIterator std::__uninitialized_copy_a(_InputIterator, _Sentinel, _ForwardIterator, allocator<_Tp>&) [with _InputIterator = int*; _Sentinel = int*; _ForwardIterator = int*; _Tp = int]' at /home/linuxbrew/.linuxbrew/Cellar/gcc/15.2.0_1/include/c++/15/bits/stl_uninitialized.h:635:32,
inlined from 'constexpr std::vector<_Tp, _Alloc>& std::vector<_Tp, _Alloc>::operator=(const std::vector<_Tp, _Alloc>&) [with _Tp = int; _Alloc = std::allocator<int>]' at /home/linuxbrew/.linuxbrew/Cellar/gcc/15.2.0_1/include/c++/15/bits/vector.tcc:257:35,
inlined from 'int main()' at main.cpp:51:18:
/home/linuxbrew/.linuxbrew/Cellar/gcc/15.2.0_1/include/c++/15/bits/stl_uninitialized.h:273:31: warning: 'void* __builtin_memcpy(void*, const void*, long unsigned int)' writing between 1 and 404 bytes into a region of size 0 overflows the destination [-Wstringop-overflow=]
273 | __builtin_memcpy(std::__niter_base(__result),
| ~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
274 | std::__niter_base(__first),
| ~~~~~~~~~~~~~~~~~~~~~~~~~~~
275 | __n * sizeof(_ValT));
| ~~~~~~~~~~
ソースコード
#include<bits/stdc++.h>
using namespace std;
int Power(int a, int n){
int ret = 1;
int p = a;
while (n){
if (n & 1) ret = ret * p;
p = p * p;
n >>= 1;
}
return ret;
}
pair<int,int> pairmax(pair<int,int> a,pair<int,int> b,int pre){
if(b > a)swap(a,b);
if(a.first > b.first){
}
}
int main(){
int N,M;
cin >> N >> M;
vector<int> e(N),v(M),w(M);
for(int i = 0;i < N;i++)cin >> e[i];
for(int i = 0;i < M;i++)cin >> v[i] >> w[i];
vector<vector<int>> knap(Power(2,M),vector<int>(101,0));
for(int i = 0;i < (1 << M);i++){
vector<int> nowlug(0);
int lugnum = 0;
for(int j = 0;j < M;j++){
if(i & (1 << j)){
nowlug.push_back(j);
lugnum++;
}
}
vector<int> dp(101,0);
vector<int> predp(101,0);
vector<int> emp(101,0);
for(int j = 0;j < lugnum;j++){
for(int iw = 1;iw <= 100;iw++){
dp[iw] = max(predp[iw],dp[iw-1]);
if(iw >= w[nowlug[j]]){
dp[iw] = max(dp[iw], predp[iw-w[nowlug[j]]] + v[nowlug[j]]);
}
}
predp = dp;
dp = emp;
}
knap[i] = predp;
}
int ans = 0;
vector<vector<pair<int,int>>> dp(N+1,vector<pair<int,int>>(Power(2,M),{0,0}));
for(int i = 0;i < N;i++){
for(int j = 1;j < (1 << M);j++){
int nowbit = j;
while(true){
//dp[i+1][j] = max(dp[i+1][j],dp[i][nowbit] + knap[j ^ nowbit][e[i]]);
if(dp[i+1][j].first < dp[i][nowbit].first + knap[j^nowbit][e[i]]){
dp[i+1][j].first = dp[i][nowbit].first + knap[j^nowbit][e[i]];
dp[i+1][j].second = j ^ nowbit;
}
if(nowbit == 0)break;
nowbit--;
nowbit &= j;
}
ans = max(ans,dp[i+1][j].first);
}
}
cout << ans << endl;
vector<int> ans2(1 + N,0);
for(int i = 1;i < N;i++){
for(int j = 1;j < (1 << M);j++){
if(dp[i][j].first == ans){
while(i > 0){
ans2[i] = dp[i][j].second;
i--;
j -= dp[i][j].second;
}
}
}
}
for(int j = 1;j <= N;j++){
int count = 0;
vector<int> out = vector<int> (0);
for(int i = 0;i < M;i++){
if(j & (1 << i)){
count++;
out.push_back(i+1);
}
}
cout << count << " ";
for(int i : out)cout << i << " ";
cout << endl;
}
return 0;
}