Submission #1034278

#	Time	Username	Problem	Language	Result	Execution time	Memory
1034278		BABY_GANGSTER	Semiexpress (JOI17_semiexpress)	C++14	0 / 100	0 ms	348 KiB

semiexpress

//https://www.instagram.com/_modwwe/
#pragma GCC optimize("Ofast,unroll-loops")
//#pragma GCC target("avx2,bmi,bmi2")
#include<bits/stdc++.h>
#define int long long
//#define ll long long
#define down cout<<'\n';
#define debug cout<<" cucuucucuuu",down
#define NHP     ios_base::sync_with_stdio(0);cout.tie(0);cin.tie(0);
#define modwwe  int t;cin>>t; while(t--)
#define bit(i,j) (i>>j&1)
#define sobit(a) __builtin_popcountll(a)
#define task "test"
#define fin(x) freopen(x".inp","r",stdin)
#define fou(x) freopen(x".out","w",stdout)
#define pb push_back
#define checktime   cerr << (double)clock() / CLOCKS_PER_SEC * 1000  << " ms";
using namespace std;
void phongbeo();
const int inf=1e18;
const int mod2=1e9+7;
const int  mod1=998244353;
struct icd
{
    int a,b;
};
struct ib
{
    int a;
    int b;
};
struct ic
{
    int a,b,c;
};
struct id
{
    int a,b,c,d;
};
struct ie
{
    int a,b,c,d,e,f;

};
int n,m,s1,s2,s4,s3,sf,k,r,mid,s5,s6,mx,s7,s8,s9,mx2,res,dem2=0,dem=0,l,s33;
int  i,s10,s12;
int kk;
int el=29;
main()
{
#ifndef ONLINE_JUDGE
//fin(task),fou(task);
#endif
    NHP
    /// cin>>s1;
    //  modwwe
    phongbeo();
}
int a[3003];
int dp[3003];
void phongbeo()
{
    cin>>n>>m>>k;
    cin>>s33>>s1>>s2;
    cin>>mx;
    for(int i=1; i<=m; i++)
        cin>>a[i];
    k=k-m;
    a[m+1]=n+1;
    for(int i=1; i<=m; i++)
    {
        s3=(a[i]-a[1])*s1;
        s7=-1e9;
        s6=-1e9;
        s5=0;
        s4=-1;
        if(s3<=mx)
        {
            s4=0;
            for(int j=1; j<=k; j++)
            {
                s4+=(mx-s3)/s33+1;
                s6=min(s4+a[i],a[i+1]);
                dem=max(dem,dp[k-s5]+min(a[i+1]-a[i],s4));
                if(s4+a[i]>=a[i+1])break;
                s3=(a[i]-a[1])*s1+s4*s2;
                if(s3>=mx) break;
                s7=s4;
                s5=j;
            }
            if(s3>=mx)
            {
                for(int j=k; j>=s5; --j)
                    dp[j]=max(dp[j],dp[j-s5]+s4);
            }
            else  if(s5==k)
            {
                s4+=(mx-s3)/s33+1;
                s4=min(s4,a[i+1]-a[i]);
                for(int j=k; j>=s5-1; --j)
                {
               if(s5!=0)     dp[j]=max(dp[j],dp[j-s5+1]+s7);
                    if(j-s5>=0)dp[j]=max(dp[j-s5]+s4,dp[j]);

                }
            }
            else
            {
                s7=min(s7,a[i+1]-a[i]);
                for(int j=k; j>=s5-1; --j)
                {
                    if(s5!=0)dp[j]=max(dp[j],dp[j-s5+1]+s7);
                    if(j-s5>=0)dp[j]=max(dp[j-s5]+a[i+1]-a[i],dp[j]);
                }
            }
            for(int j=1; j<=k; j++)
                dp[j]=max(dp[j],dp[j-1]);
        }
        else break;
    }
    cout<<max(dp[k],dem)-1;
}

Compilation message (stderr)

semiexpress.cpp:49:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   49 | main()
      | ^~~~

• Subtask 1: 0 / 18
• Subtask 2: 0 / 30
• Subtask 3: 0 / 52