Submission #603212

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
603212	2022-07-23 17:11:07	Abdulmohsen1284	Arranging Shoes (IOI19_shoes)	C++14	10 / 100	1 ms	316 KiB

shoes

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#include"bits/stdc++.h"
using namespace std;
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
using namespace __gnu_pbds;
template<class x>
using ordered_set = tree<x, null_type,less<x>, rb_tree_tag,tree_order_statistics_node_update>;
mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
void usaco(){freopen("cruise.out","w",stdout);freopen("cruise.in","r",stdin);}
#include "shoes.h"
long long ls[100005],rs[100005],seg[4000005],l,r,N=1;
bool used[100005];
long long lef(long long fr,long long sc,long long ind)
{
    if(l<=fr&&r>=sc)
        return seg[ind];
    if(r<fr||sc<l)
        return 0;
    long long mid=fr+sc;
    mid/=2;
    return lef(fr,mid,ind*2)+lef(mid+1,sc,ind*2+1);
}
long long count_swaps(std::vector<int> s) {
    long long n=s.size()/2;
    while(N<s.size())
        N*=2;
 
 
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Compilation message (stderr)

shoes.cpp: In function 'long long int count_swaps(std::vector<int>)':
shoes.cpp:29:12: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   29 |     while(N<s.size())
      |           ~^~~~~~~~~
shoes.cpp:33:18: warning: comparison of integer expressions of different signedness: 'int' and 'long long unsigned int' [-Wsign-compare]
   33 |     for(int i=N;i<N+s.size();i++)
      |                 ~^~~~~~~~~~~
shoes.cpp:38:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   38 |     for(int i=0;i<s.size();i++)
      |                 ~^~~~~~~~~
shoes.cpp:46:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   46 |     for(int i=0;i<s.size();i++)
      |                 ~^~~~~~~~~
shoes.cpp:28:15: warning: unused variable 'n' [-Wunused-variable]
   28 |     long long n=s.size()/2;
      |               ^
shoes.cpp: In function 'void usaco()':
shoes.cpp:9:21: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
    9 | void usaco(){freopen("cruise.out","w",stdout);freopen("cruise.in","r",stdin);}
      |              ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~
shoes.cpp:9:54: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
    9 | void usaco(){freopen("cruise.out","w",stdout);freopen("cruise.in","r",stdin);}
      |                                               ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~

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