Submission #905251

#	Time	Username	Problem	Language	Result	Execution time	Memory
905251		Ahmed57	The Collection Game (BOI21_swaps)	C++17	Compilation error	0 ms	0 KiB

swaps

#include <bits/stdc++.h>
using namespace std;
#include "swaps.h"
 
int a[2001] = {0}; 
int n;
vector<int> nah;
/*void schedule(int a,int b){
    if(rea[a]>rea[b]){
        nah.push_back(1);
    }else nah.push_back(0);
}*/
int x = 0;
void compp(int a,int b){
    if(b<=n&&a<=n){
        schedule(a,b); 
        x++;
    }
}/*
vector<int> visit(){
    vector<int> xdd = nah;
    nah.clear();
    return xdd;
}*/
void bitonic(int l, int r, bool inc){
    if(l==r)return ;
    int md=(l+r)/2;
    bitonic(l,md,inc);
    bitonic(md+1,r,!inc);
    vector<int> vi;
    for(int i = l;i<=md;i++){
        compp(a[i],a[i+md+1-l]);
    }
    vi = visit();
    if(vi.size()!=x){
        assert();
    }
    x = 0;
    int ind = 0;
    for(int i = l;i<=md;i++){
        if(a[i+md+1-l]>n){
            if(inc){
                swap(a[i],a[i+(md+1-l)]);
            }
        }else if(a[i]>n){
            if(!inc){
                swap(a[i],a[i+(md+1-l)]);
            }
        }else{
            if((!inc)^(!vi[ind])){
                swap(a[i],a[i+(md+1-l)]);
            }
            ind++;
        }
    }
    bitonic(l,md,inc);
    bitonic(md+1,r,inc);
}
void solve(int N,int V){
    n = N;
    int xd = 1;
    while(xd<N)xd*=2;
    for(int i = 1;i<=xd;i++){
        a[i] = i;
    }
    bitonic(1,xd,1);
    vector<int> ans;
    for(int i = xd-N+1;i<=xd;i++){
        ans.push_back(a[i]);
    }
    answer(ans);
}/*
int main(){
    freopen("input.txt","r",stdin);
    freopen("outout.txt","w",stdout);
    rea[1] = 4, rea[2] = 1, rea[3] = 2 , rea[4] = 3 , rea[5] = 10;
    a[1] =1 , a[2] = 2 , a[3] = 3 , a[4] = 4 , a[5] = 5 , a[6] = 6, a[7] = 7 , a[8] = 8;
    n = 5;
    bitonic(1,8,1);
    for(int i = 1;i<=8;i++){
        cout<<a[i]<<" ";
    }
}*/

Compilation message (stderr)

swaps.cpp: In function 'void bitonic(int, int, bool)':
swaps.cpp:35:17: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   35 |     if(vi.size()!=x){
      |        ~~~~~~~~~^~~
In file included from /usr/include/c++/10/cassert:44,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:33,
                 from swaps.cpp:1:
swaps.cpp:36:9: error: expected primary-expression before ')' token
   36 |         assert();
      |         ^~~~~~