Submission #283141

#	Time	Username	Problem	Language	Result	Execution time	Memory
283141		IWANTTOGETGOLDINIOI	Arranging Shoes (IOI19_shoes)	C++14	0 / 100	1 ms	384 KiB

shoes

#include <iostream>
#include <vector>
#include <algorithm>
#include <fstream>
#include <queue>
#include <deque>
#include <iomanip>
#include <cmath>
#include <set>
#include <stack>
#include <map>
#include <unordered_map>

using namespace std;

#define FOR(i,n) for(int me=0;me<n;me++)
#define FORE(i,a,b) for(int i=a;i<=b;i++)
#define ll long long 
//#define int long long
#define ld long double
#define vi vector<int>
#define pb push_back
#define ff first
#define ss second
#define ii pair<int,int>
#define iii pair<ii,int>
#define il pair<ll,ll>
#define vv vector
#define endl '\n'
 
int count_swaps( vector < int > vc ){
	int ans = 0;
	for (int i = 0;i < vc.size();i++){
		if (vc[i] < 0){
			for (int j = i;j < vc.size();j++){
				if (vc[j] == -vc[i]){
					ans += (j - i);
				}
			}
		} else {
			for (int j = i;j < vc.size();j++){
				if(-vc[i] == vc[j]){
					ans += (j-i);
				}
			}
		}
	}
	return ans;
}

Compilation message (stderr)

shoes.cpp: In function 'int count_swaps(std::vector<int>)':
shoes.cpp:33:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   33 |  for (int i = 0;i < vc.size();i++){
      |                 ~~^~~~~~~~~~~
shoes.cpp:35:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   35 |    for (int j = i;j < vc.size();j++){
      |                   ~~^~~~~~~~~~~
shoes.cpp:41:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   41 |    for (int j = i;j < vc.size();j++){
      |                   ~~^~~~~~~~~~~

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