Submission #1023975

#	Time	Username	Problem	Language	Result	Execution time	Memory
1023975		lucri	Sails (IOI07_sails)	C++14	30 / 100	1039 ms	2896 KiB

sails

#include <bits/stdc++.h>
using namespace std;
long long n,hmax;
long long ans,h,w;
long long v[100010],lss,ls;
long long s[100010],ss[100010];
static inline void adauga(long long cost,long long length)
{
    if(ls&&cost==s[ls]/1000000)
    {
        length+=s[ls]%1000000;
        --ls;
    }
    s[++ls]=cost*1000000+length;
}
int main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(0);
    cout.tie(0);
    cin>>n;
    for(long long i=1;i<=n;++i)
    {
        cin>>h>>w;
        v[i]=h*1000000+w;
    }
    sort(v+1,v+n+1);
    for(long long i=1;i<=n;++i)
    {
        h=v[i]/1000000;
        w=v[i]%1000000;
        if(h>hmax)
        {
            adauga(0,h-hmax);
            hmax=h;
        }
        while(w)
        {
            if(w>=s[ls]%1000000)
            {
                ss[++lss]=s[ls]+1000000;
                ans+=s[ls]/1000000*(s[ls]%1000000);
                w-=s[ls]%1000000;
                --ls;
            }
            else
            {
                ans+=w*s[ls]/1000000;
                ss[++lss]=s[ls]-w;
                ss[++lss]=(s[ls]/1000000+1)*1000000+w;
                w=0;
                --ls;
            }
        }
        while(lss)
        {
            adauga(ss[lss]/1000000,ss[lss]%1000000);
            --lss;
        }
    }
    cout<<ans;
    return 0;
}

• Subtask 1: 5 / 5
• Subtask 2: 10 / 10
• Subtask 3: 10 / 10
• Subtask 4: 5 / 5
• Subtask 5: 0 / 10
• Subtask 6: 0 / 10
• Subtask 7: 0 / 10
• Subtask 8: 0 / 10
• Subtask 9: 0 / 10
• Subtask 10: 0 / 10
• Subtask 11: 0 / 10