#include<bits/stdc++.h>
//#include <ext/pb_ds/assoc_container.hpp>
//#include <ext/pb_ds/tree_policy.hpp>
//using namespace __gnu_pbds;
using namespace std;
typedef long double ld;
typedef long long ll;
typedef unsigned long long ull;
typedef vector<int>vi;
typedef vector<vector<int>>vvi;
typedef vector<ll>vl;
typedef vector<vl> vvl;
typedef pair<int,int>pi;
typedef pair<ll,ll> pl;
typedef vector<pl> vpl;
typedef vector<ld> vld;
typedef pair<ld,ld> pld;
//typedef tree<ll, null_type, less_equal<ll>,rb_tree_tag,tree_order_statistics_node_update> ordered_set;
template<typename T> ostream& operator<<(ostream& os, vector<T>& a){os<<"[";for(int i=0; i<ll(a.size()); i++){os << a[i] << ((i!=ll(a.size()-1)?" ":""));}os << "]\n"; return os;}
#define all(x) x.begin(),x.end()
#define YES out("YES")
#define NO out("NO")
#define out(x){cout << x << "\n"; return;}
#define GLHF ios_base::sync_with_stdio(false); cin.tie(NULL)
#define print(x){for(auto ait:x) cout << ait << " "; cout << "\n";}
#define pb push_back
#define umap unordered_map
template<typename T1, typename T2> istream& operator>>(istream& is, pair<T1, T2>& p){is >> p.first >> p.second;return is;}
template<typename T1, typename T2> ostream& operator<<(ostream& os, pair<T1, T2>& p){os <<"" << p.first << " " << p.second << ""; return os;}
void usaco(string taskname){
string fin = taskname + ".in";
string fout = taskname + ".out";
const char* FIN = fin.c_str();
const char* FOUT = fout.c_str();
freopen(FIN, "r", stdin);
freopen(FOUT, "w", stdout);
}
template<typename T>
void read(vector<T>& v){
int n=v.size();
for(int i=0; i<n; i++)
cin >> v[i];
}
template<typename T>
vector<T>UNQ(vector<T>a){
vector<T>ans;
for(T t:a)
if(ans.empty() || t!=ans.back())
ans.push_back(t);
return ans;
}
ll ceil(ll a,ll b){
ll ans=a/b;
if(a%b)ans++;
return ans;
}
ld log (ld a,ld b){return log(b)/log(a);}
ll power(ll base, ll exp,ll M=1e18){//(base^exp)%M
ll ans=1;
while(exp){
if(exp%2==1)ans=((ans%M)*(base%M))%M;
base=((base%M)*(base%M))%M;
exp/=2;
}
return ans;
}
string to_base(int n,int new_base){
string s;
int nn=n;
while(nn){
s+=to_string(nn%new_base);
nn/=new_base;
}
reverse(all(s));
return s;
}
ll gcd(ll a,ll b){
if(a<b)swap(a,b);
if(b==0)return a;
return gcd(b,a%b);
}
ll lcm(ll a,ll b){
ll x= (a/gcd(a,b));
return b*x;
}
vl generate_array(ll n,ll mn=1,ll mx=1e18+1){
if(mx==1e18+1)
mx=n;
vl ans(n);
for(int i=0; i<n;i++)
ans[i]=(mn+rand()%(mx-mn+1));
return ans;
}
string substr(string s,int l,int r){
string ans;
for(int i=l; i<=r; i++)
ans+=s[i];
return ans;
}
#include "transfer.h"
//#include "grader.cpp"
vi get_attachment(vi source) {
int x=0;
for(int i=0; i<source.size(); i++)
x^=(i*source[i]);
vi ans(source.size()==255?9:7);
for(int i=0; i<10; i++)
if(x&(1<<i))
ans[i]=1;
ans.back()=source[0];
return ans;
}
vi retrieve(vi data) {
if(data.back()!=data[0]){
data[0]^=1;
while(data.size()!=255 && data.size()!=63)
data.pop_back();
return data;
}
if(data.size()==264){
vi ans(255);
int x=0;
for(int i=0; i<263; i++)
x^=(i*data[i]);
for(int i=0; i<255; i++)
ans[i]=data[i];
ans[x]^=1;
return ans;
}
vi ans(63);
int x=0;
for(int i=0; i<69; i++)
x^=(i*data[i]);
for(int i=0; i<=63; i++)
ans[i]=data[i];
if(x)
ans[x]^=1;
return ans;
}
Compilation message
transfer.cpp: In function 'vi get_attachment(vi)':
transfer.cpp:110:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
110 | for(int i=0; i<source.size(); i++)
| ~^~~~~~~~~~~~~~
transfer.cpp: In function 'void usaco(std::string)':
transfer.cpp:39:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
39 | freopen(FIN, "r", stdin);
| ~~~~~~~^~~~~~~~~~~~~~~~~
transfer.cpp:40:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
40 | freopen(FOUT, "w", stdout);
| ~~~~~~~^~~~~~~~~~~~~~~~~~~
transfer.cpp: In function 'vi retrieve(vi)':
transfer.cpp:141:15: warning: 'void* __builtin_memcpy(void*, const void*, long unsigned int)' forming offset [252, 255] is out of the bounds [0, 252] [-Warray-bounds]
141 | ans[i]=data[i];
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
3 ms |
748 KB |
WA in grader: wrong source retrieval |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
6 ms |
2476 KB |
WA in grader: wrong source retrieval |
| 2 |
Halted |
0 ms |
0 KB |
- |
