| # | Time | Username | Problem | Language | Result | Execution time | Memory |
|---|---|---|---|---|---|---|---|
| 794579 | firewater | Wiring (IOI17_wiring) | C++14 | 0 ms | 0 KiB |
This submission is migrated from previous version of oj.uz, which used different machine for grading. This submission may have different result if resubmitted.
#include "wiring.h"
#include<cstdio>
#include<cstring>
#include<iostream>
#include<algorithm>
#include <cassert>
#define ll long long
#define mp make_pair
#define fs first
#define sn second
#define MX 202300
using namespace std;
ll n,sum[MX],num[MX],f[MX];
pair<ll,ll>a[MX];
ll ask(ll l,ll r)
{
ll m1,m2,sum1,sum2;
m1=num[r]-num[l-1];
m2=r-l+1-m1;
if(a[l].sn==2)swap(m1,m2);
sum1=sum[l+m1-1]-sum[l-1];
sum2=sum[r]-sum[r-m2];
return ((a[l+m1-1].fs*m1-sum1)+(sum2-a[r-m2+1].fs*m2)+(a[r-m2+1].fs-a[l+m1-1].fs)*max(m1,m2));
// m1=r.size();
// m2=b.size();
// ll sum1=0,sum2=0;
// for(ll i=0;i<m1;++i)
// sum1+=r[i];
// for(ll i=0;i<m2;++i)
// sum2+=b[i];
// return ((sum2-b[0]*m2)+(r[m1-1]*m1-sum1)+(b[0]-r[m1-1])*max(m1,m2));
}
long long min_total_length(std::vector<int> r, std::vector<int> b) {
ll m1=r.size(),m2=b.size();
for(ll i=1;i<=m1;++i)
a[i]=mp(r[i-1],1);
for(ll i=1;i<=m2;++i)
a[i+m1]=mp(b[i-1],2);
n=m1+m2;
sort(a+1,a+1+n);
for(ll i=1;i<=n;++i){
if(a[i].sn==1)num[i]=1;
num[i]+=num[i-1];
sum[i]=sum[i-1]+a[i].fs;
}
for(ll i=1;i<=n;++i)
f[i]=100000000000000000ll;
f[0]=0;
for(ll i=n;i<=n;++i){
ll j=i-1,now=1;
while(j>0){
if(now==1&&a[j].sn==a[i].sn){
j--;
continue;
}
now=2;
if(a[j].sn==a[i].sn)break;
f[i]=min(f[i],min(f[j-1],f[j])+ask(j,i));
printf("%lld %lld %lld\n",j,i,f[i]);
j--;
}
}
return f[n];
}
int main() {
int n, m;
assert(2 == scanf("%d %d", &n, &m));
vector<int> r(n), b(m);
for(int i = 0; i < n; i++)
assert(1 == scanf("%d", &r[i]));
for(int i = 0; i < m; i++)
assert(1 == scanf("%d", &b[i]));
long long res = min_total_length(r, b);
printf("%lld\n", res);
return 0;
}