Submission #1135937

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
1135937	2025-01-14 10:58:05	iancu007	Potatoes and fertilizers (LMIO19_bulves)	C++20	0 / 100	169 ms	6220 KiB

bulves

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#include <iostream>
#include <cmath>
int a[500005], b[500005], d[500005];
using namespace std;
long long solve(int n)
{
    for (int i=1; i<=n; i++)
        d[i]=a[i]-b[i];
    long long ans=0;
    for (int i=1; i<=n-1; i++)
        if (d[i])
        {
            ans+=abs(d[i]);
            d[i+1]+=d[i];
            d[i] = 0;
        }
    return ans;
}
int main()
{
    int n;
    cin>>n;
    for (int i=1; i<=n; i++)
        cin>>a[i]>>b[i];
    cout<<solve(n);
    return 0;
}
 
 
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