Submission #940226

#	Time	Username	Problem	Language	Result	Execution time	Memory
940226		12345678	Potatoes and fertilizers (LMIO19_bulves)	C++17	20 / 100	46 ms	1112 KiB

bulves

#include <bits/stdc++.h>

using namespace std;

#define ll long long

const int nx=3e3+5, kx=3e4+5;

ll n, a[nx], b[nx], ans, d[nx], dp[2][kx];

int main()
{
    cin.tie(NULL)->sync_with_stdio(false);
    cin>>n;
    for (int i=1; i<=n; i++) cin>>a[i]>>b[i], d[i]=d[i-1]+a[i]-b[i];
    for (int i=1; i<=n; i++)
    {
        int c=i%2, p=1-c;
        dp[c][0]=dp[p][0]+abs(d[i]);
        for (int j=1; j<=d[n]; j++) dp[c][j]=min(dp[c][j-1], dp[p][j]+abs(j-d[i])); //printf("%d %d %d\n", i, j, dp[c][j]);
    }
    cout<<dp[n%2][d[n]];
}

• Subtask 1: 0 / 24
• Subtask 2: 0 / 10
• Subtask 3: 20 / 20
• Subtask 4: 0 / 10
• Subtask 5: 0 / 36