Submission #240656

#	Time	Username	Problem	Language	Result	Execution time	Memory
240656		DavidDamian	Cipele (COCI18_cipele)	C++11	90 / 90	53 ms	1272 KiB

cipele

#include <bits/stdc++.h>
using namespace std;
///Binary Search The Answer
int n,m;
int A[100005];
int B[100005];
bool possible(int maxDiff) ///Returns whether is possible to match shoes with at most maxDiff ugliness
{
    int j=0;
    for(int i=0;i<n;i++){
        while(j<m && abs(A[i]-B[j]) > maxDiff)
            j++;
        if(j==m)
            return false; //We have no more shoes to match
        j++;
    }
    return true; //Shoes matched successfully
}
int binarySearch() ///Return the first moment when is possible
{
    int k=-1;
    for(int b=1000000007;b>=1;b/=2){
        while(!possible(k+b)) k+=b;
    }
    return k+1;
}
int main()
{
    ios_base::sync_with_stdio(0);cin.tie(0);
    cin>>n>>m;
    for(int i=0;i<n;i++){
        cin>>A[i];
    }
    for(int i=0;i<m;i++){
        cin>>B[i];
    }
    if(n>m){
        swap(n,m);
        swap(A,B);
    }
    sort(A,A+n);
    sort(B,B+m);
    cout<<binarySearch()<<'\n';
    return 0;
}

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