Submission #146395

#	Time	Username	Problem	Language	Result	Execution time	Memory
146395		badrovinho	Cipele (COCI18_cipele)	C++14	90 / 90	166 ms	2952 KiB

cipele

#include <iostream>
#include <bits/stdc++.h>
#include <algorithm>
#include <vector>
#include <string>
#include <cstring>
 
using namespace std;
 
	int l[100005];
	int r[100005];
 
int main (){
	
	int n,m;
	cin >> n >> m;
	
	for (int i = 0; i < n; i++){
		cin >> l[i];
	}
	
	for (int i = 0; i < m; i++){
		cin >> r[i];
	}
	
	sort(l, l + n);
	sort(r, r + m);
	
	int lo = 0;
	int hi = 1000000000;
	int mid = hi / 2;
	
	while (lo != hi){
		
		if (n > m){
			int raz = n - m;
			int ptl = 0;
			int ptr = 0;
			int sol = true;
			for (int i = 0; i < m; i++){
				while (raz && abs(l[ptl] - r[i]) > mid) {
					raz--;
					ptl++;
				}
				if (abs(l[ptl] - r[i]) > mid) {
					sol = false;
					break;
				}
				ptl++;
			}
			if (!sol){
				lo = mid+1;
				mid = (hi+lo)/2;
			}else {
				hi = mid;
				mid = (hi+lo)/2;
			}
		} else {
		
			int raz = m - n;
			int ptl = 0;
			int ptr = 0;
			int sol = true;
			for (int i = 0; i < n; i++){
				while (raz && abs(l[i] - r[ptr]) > mid) {
					raz--;
					ptr++;
				}
				if (abs(l[i] - r[ptr]) > mid) {
					sol = false;
					break;
				}
				ptr++;
			}
			if (!sol){
				lo = mid+1;
				mid = (hi+lo)/2;
			}else {
				hi = mid;
				mid = (hi+lo)/2;
			}
		
		}
	//	cout << "srednji mid je --> " << mid << endl;	
	}
	
	cout << mid;
	
	return 0;
}

Compilation message (stderr)

cipele.cpp: In function 'int main()':
cipele.cpp:38:8: warning: unused variable 'ptr' [-Wunused-variable]
    int ptr = 0;
        ^~~
cipele.cpp:61:8: warning: unused variable 'ptl' [-Wunused-variable]
    int ptl = 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