이 제출은 이전 버전의 oj.uz에서 채점하였습니다. 현재는 제출 당시와는 다른 서버에서 채점을 하기 때문에, 다시 제출하면 결과가 달라질 수도 있습니다.
#include<bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
using namespace __gnu_pbds;
using namespace std;
typedef long long ll;
typedef double db;
typedef vector<long long> vl;
typedef pair<long long, long long > pl;
const int N = 1e6 + 1;
#define po pop_back
#define pb push_back
#define mk make_pair
#define lw lower_bound
#define up upper_bound
#define ff first
#define ss second
#define boost ios_base::sync_with_stdio(); cin.tie(0); cout.tie(0);
#define MOD 1000000007
#define MAX 1e18
#define MIN -1e18
#define per(i,a,b) for(ll i=b;i>=a;i--)
#define con continue
#define freopen freopen("input.txt", "r", stdin);freopen("output.txt", "w", stdout);
#define PI 3.14159265358979323846264338327950288419716939937510582097494459230781640628
// typedef tree<ll , null_type, less<ll>, rb_tree_tag, tree_order_statistics_node_update> indexed_set;
// template< typename T>
// using indexed_set = tree<T, null_type, less<T>, rb_tree_tag, tree_order_statistics_node_update>;
ll n, m, mid, res,pos, mn, mx, sum, h1, h2, arr[3234567],arr1[1234567],k, i, j, h, a, x, y, z,par[1234567];
bool used[1234567];
ll tp[1234567];
ll dx[4]={-1,1,0,0},dy[4]={0,0,-1,1},c1[123][123];
//ll jump[22][223456];
//ll lvl[1234567];
//ll bit[1234567];
//ll timer;
//ll st[1234567],endd[1234567];
//ll dp[5005][5005];
ll f[2][100010],w[300][200000];
void solve(ll k,ll l,ll r,ll L,ll R){
if(r < l)return;
ll mid = (l+r)/2;
f[k&1][mid] = MIN;
for(int j=L;j<=min(mid,R);j++){
if(f[k&1][mid] < f[k&1^1][j] + arr[j]*(arr[mid] - arr[j]))f[k&1][mid]=f[k&1^1][j] + arr[j]*(arr[mid] - arr[j]),w[k][mid]=j;
}
solve(k,l,mid-1 , L,w[k][mid]);
solve(k,mid+1,r , w[k][mid],R);
}
class A {
public :
static void funcA() {
cin>>n>>k;
f[0][0]=MIN;
for(int i=1;i<=n;i++)cin>>arr[i],arr[i]+=arr[i-1];
for(int l=1;l<=k;l++){
solve(l,l,n,l,n);
}
cout<<f[k&1][n]<<'\n';
vl vec(k);
for(int v=n,l=k ; v = w[l--][v];)vec[l]=v;
for(auto u:vec)cout<<u<<" ";
}
}lol;
void solve() {
A::funcA();
}
int main() {
ll T = 1;
//cin>>T;
boost;
while (T--) {
solve();
}
}
컴파일 시 표준 에러 (stderr) 메시지
sequence.cpp: In function 'void solve(ll, ll, ll, ll, ll)':
sequence.cpp:45:29: warning: suggest parentheses around arithmetic in operand of '^' [-Wparentheses]
45 | if(f[k&1][mid] < f[k&1^1][j] + arr[j]*(arr[mid] - arr[j]))f[k&1][mid]=f[k&1^1][j] + arr[j]*(arr[mid] - arr[j]),w[k][mid]=j;
| ~^~
sequence.cpp:45:82: warning: suggest parentheses around arithmetic in operand of '^' [-Wparentheses]
45 | if(f[k&1][mid] < f[k&1^1][j] + arr[j]*(arr[mid] - arr[j]))f[k&1][mid]=f[k&1^1][j] + arr[j]*(arr[mid] - arr[j]),w[k][mid]=j;
| ~^~
sequence.cpp: In static member function 'static void A::funcA()':
sequence.cpp:62:29: warning: suggest parentheses around assignment used as truth value [-Wparentheses]
62 | for(int v=n,l=k ; v = w[l--][v];)vec[l]=v;
| ~~^~~~~~~~~~~
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