Submission #162014

#	Time	Username	Problem	Language	Result	Execution time	Memory
162014		mosiashvililuka	K개의 묶음 (IZhO14_blocks)	C++14	0 / 100	42 ms	30088 KiB

blocks

#include<bits/stdc++.h>
using namespace std;
long long a,b,c,d,e,dp[100009][109],f[100009],zx,xc,cv,ka[100009],rm[100009][20],vb;
int x[100009][109];
int main(){
	ios_base::sync_with_stdio(false),cin.tie(0),cout.tie(0);
	cin>>a>>b;
	for(c=1; c<=a; c++) cin>>f[c];
	for(c=1; c<=a; c++) rm[c][0]=f[c];
	for(d=1; d<=17; d++){
		for(c=1; c<=a; c++){
			if(c+(1<<d)-1>a) break;
			rm[c][d]=max(rm[c][d-1],rm[c+(1<<(d-1))][d-1]);
		}
	}
	/*for(c=1; c<=a; c++){
	for(d=1; d<=a; d++){
	    if((1<<d)+c>a) break;
	    cout<<c<<" "<<(1<<d)<<" "<<rm[c][d]<<endl;
	}
	}*/
	ka[0]=0;
	ka[1]=0;
	ka[2]=0;
	ka[3]=1;
	for(d=4; d<=a; d++){
		if(ka[d-1]*2<d) ka[d]=ka[d-1]+1; else ka[d]=ka[d-1];
	}
	for(c=1; c<=a; c++) x[c][b+1]=c-1;
	for(c=1; c<=b; c++){
		dp[c][c]=c*(c+1)/2;
		x[c][c]=c-1;
	}
	for(c=1; c<=a; c++){
	    dp[c][1]=c;x[c][1]=0;
	}
	for(c=2; c<=a; c++){
		for(d=min(b,c-1); d>=2; d--){
			if(x[c-1][d]>=d) zx=x[c-1][d]; else zx=d-1;
			if(x[c][d+1]<=c-1) xc=x[c][d+1]; else xc=c-1;
			dp[c][d]=999999999999999999LL;
			cv=c-xc;
/*			if(c==3&&d==2){
			        cout<<"FDsfdsf"<<" "<<zx<<" "<<xc<<endl;
			    }*/
			for(e=xc; e>=zx; e--){
				vb=max(rm[e+1][ka[cv]],rm[c-(1<<ka[cv])+1][ka[cv]]);
				if(dp[c][d]>dp[e][d-1]+vb){
					dp[c][d]=dp[e][d-1]+vb;
					x[c][d]=e;
				}
				cv++;
			}
		}
	}
	cout<<dp[a][b];
/*	for(c=1; c<=a; c++){
	    for(d=1; d<=a; d++){
	        cout<<dp[c][d]<<","<<x[c][d]<<" ";
	    }
	    cout<<endl;
	}*/
	return 0;
}

• Subtask 1: 0 / 14
• Subtask 2: 0 / 18
• Subtask 3: 0 / 21
• Subtask 4: 0 / 47