Submission #314556

#	Time	Username	Problem	Language	Result	Execution time	Memory
314556		baibhav26062008	Arranging Shoes (IOI19_shoes)	C++14	10 / 100	1 ms	256 KiB

shoes

#include "shoes.h"
#include <bits/stdc++.h>
using namespace std;
long long count_swaps(std::vector<int> s) {
	int n = s.size()/2;
	if (n == 1) {
		if (s[0] < s[1]) {
			return 0;
		} else {
			return 1;
		}
	} 
	long long  ans=0;
	for (int i = 0; i < n; i++) {
		ans+=i;
	}
	bool all_equal = true;
	for (int i = 0; i < n; i++) {
		for(int j = 0; j < n; j++) {
			if (i != j) {
				if (abs(s[i]) != abs(s[j])) {
					all_equal = false;
					break;
				}
			}
		}
		if (all_equal == false) break;
	}
	if (all_equal) {
		ans = 0;
		for (int i = 0;i < s.size(); i++) {
			if (abs(s[i])) {
				for (int j = i;j < s.size(); j++) {
					if (abs(s[i]) == abs(s[j])) {
						ans += abs(j - i);
					}
					if (s[i] > s[j]) {
						ans++;
					}
				} 
			}
		}
	}
	return ans;
}

Compilation message (stderr)

shoes.cpp: In function 'long long int count_swaps(std::vector<int>)':
shoes.cpp:31:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   31 |   for (int i = 0;i < s.size(); i++) {
      |                  ~~^~~~~~~~~~
shoes.cpp:33:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   33 |     for (int j = i;j < s.size(); j++) {
      |                    ~~^~~~~~~~~~

• Subtask 1: 10 / 10
• Subtask 2: 0 / 20
• Subtask 3: 0 / 20
• Subtask 4: 0 / 15
• Subtask 5: 0 / 20
• Subtask 6: 0 / 15