Submission #598042

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
598042	2022-07-17 12:49:28	LIF	Arranging Shoes (IOI19_shoes)	C++14	Compilation error	0 ms	0 KiB

shoes

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#include<bits/stdc++.h>
#include<vector>
using namespace std;
int n;
int a[200005];
vector<int> v[300005];
long long int sum[300005];
bool vis[300005];
int lowbit(int x)
{
  return x&(-x);
}
int add(int x,int val)
{
  while(x<=n)
  {
    sum[x] +=val;
    x+=lowbit(x);
  }
}
long long int getsum(int x)
{
  long long int ans = 0;
  while(x>0)
  {
    ans += sum[x];
    x-=lowbit(x);
  }
  return ans;
}
 
 
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Compilation message (stderr)

shoes.cpp: In function 'int add(int, int)':
shoes.cpp:20:1: warning: no return statement in function returning non-void [-Wreturn-type]
   20 | }
      | ^
shoes.cpp: In function 'int main()':
shoes.cpp:48:7: warning: unused variable 'x' [-Wunused-variable]
   48 |   int x = a[i];
      |       ^
/usr/bin/ld: /tmp/ccU2BQQk.o: in function `main':
grader.cpp:(.text.startup+0x0): multiple definition of `main'; /tmp/ccectpMl.o:shoes.cpp:(.text.startup+0x0): first defined here
/usr/bin/ld: /tmp/ccU2BQQk.o: in function `main':
grader.cpp:(.text.startup+0x29d): undefined reference to `count_swaps(std::vector<int, std::allocator<int> >)'
collect2: error: ld returned 1 exit status