Submission #590310

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
590310	2022-07-05 19:51:25	mpawicka_77	Potatoes and fertilizers (LMIO19_bulves)	C++14	0 / 100	108 ms	262144 KiB

bulves

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#include <bits/stdc++.h>
using namespace std;
stack<pair<int,int>>S[500003];
stack<int>nad,nad2;
int T[500003];
int main()
{
    int n;
    cin>>n;
    for(int i=1; i<=n; i++)
    {
        int a,b;
        cin>>a>>b;
        T[i]=a-b;
    }
    for(int i=1; i<=n; i++)
    {
        if(T[i]>0) nad.push(i);
        while (T[i]<0 && !nad.empty())
        {
            int k=nad.top(),w=min(-T[i],T[k]);
            T[k]-=w, T[i]+=w;
            if(T[k]==0) nad.pop();
            S[i].push({k,w});
        }
    }
    long long ans=0;
    for(int i=n; i>=1; i--)
    {
        if(T[i]>0) nad2.push(i);
 
 
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