Submission #751220

#	Time	Username	Problem	Language	Result	Execution time	Memory
751220		kusmetliq	Arranging Shoes (IOI19_shoes)	C++14	45 / 100	23 ms	3128 KiB

shoes

#include "shoes.h"
#include<bits/stdc++.h>
using namespace std;
long long count_swaps(vector<int> s) {
    int n=s.size();
    int curcnt=0;
    long long ans=0;
    for(int i=0;i<s.size();i++) {
        if(s[i]<0) {
            ans+=abs(i-(curcnt*2));
            curcnt++;
        }
    }
    return ans;
}

Compilation message (stderr)

shoes.cpp: In function 'long long int count_swaps(std::vector<int>)':
shoes.cpp:8:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
    8 |     for(int i=0;i<s.size();i++) {
      |                 ~^~~~~~~~~
shoes.cpp:5:9: warning: unused variable 'n' [-Wunused-variable]
    5 |     int n=s.size();
      |         ^

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