Submission #704638

#TimeUsernameProblemLanguageResultExecution timeMemory
704638bin9638Parrots (IOI11_parrots)C++17
100 / 100
11 ms1392 KiB
#ifndef SKY #include "encoder.h" #include "encoderlib.h" #endif // SKY #include <bits/stdc++.h> using namespace std; #define mot (__int128_t)1 #define i128 __int128_t #ifdef SKY vector<int> tokens; void send(int x) { tokens.push_back(x); } void write(__int128_t x) { if(x==0) { cout<<0<<endl; return; } string s=""; while(x>0) { s=(char)(x%10+'0')+s; x/=10; } cout<<s<<endl; } #endif // SKY void encode(int n, int M[]) { if(n==1) { send(M[0]); return; } int length=n*5/8; __int128_t dp[45][35]={}; for(int i=0;i<32;i++) dp[length][i]=1; for(int i=length-1;i>=1;i--) for(int j=0;j<32;j++) for(int t=j;t<32;t++) dp[i][j]+=dp[i+1][t]; for(int k=0;k<8;k++) { i128 vt=0; for(int i=0;i<n;i++) if((M[i]>>k)&1) vt+=(mot<<i); // write(vt); vt++; int cuoi=0; for(int i=1;i<=length;i++) { for(int j=cuoi;j<32;j++) if(dp[i][j]<vt) { vt-=dp[i][j]; }else { // cout<<j<<endl; send((k<<5)+j); cuoi=j; break; } } } } #ifdef SKY int main(void) { freopen("ENCODE.inp","r",stdin); freopen("ENCODE.out","w",stdout); srand(time(0)); int n; cin >> n; int a[n]; for (int i = 0; i < n; i++) cin >> a[i]; encode(n, a); random_shuffle(tokens.begin(),tokens.end()); cout << n << endl; cout << tokens.size() << endl; for (int x : tokens) cout << x << " " ; cout << endl; return 0; } #endif // SKY
#ifndef SKY #include "decoder.h" #include "decoderlib.h" #endif // SKY #include <bits/stdc++.h> using namespace std; #define mot (__int128_t)1 #define i128 __int128_t #ifdef SKY vector<int> tokens; void output(int b) { cout<<b<<" "; } void write(__int128_t x) { if(x==0) { cout<<0<<endl; return; } string s=""; while(x>0) { s=(char)(x%10+'0')+s; x/=10; } cout<<s<<endl; } #endif // SKY void decode(int n, int l,int X[]) { if(n==1) { output(X[0]); return; } int length=n*5/8,f[n]; __int128_t dp[45][35]={}; for(int i=0;i<32;i++) dp[length][i]=1; for(int i=length-1;i>=1;i--) for(int j=0;j<32;j++) for(int t=j;t<32;t++) dp[i][j]+=dp[i+1][t]; int kq[n]={}; for(int k=0;k<8;k++) { i128 vt=0; int a[n+5]={},dem=0; for(int i=0;i<l;i++) if((X[i]>>5)==k) { a[++dem]=(X[i]&((1<<5)-1)); // cout<<a[dem]<<endl; } sort(a+1,a+1+dem); //for(int i=1;i<=dem;i++)cout<<a[i]<<" ";cout<<endl; for(int i=dem;i>=1;i--) { int cuoi=(i==1 ? 0 : a[i-1]); for(int j=cuoi;j<a[i];j++) vt+=dp[i][j]; } // write(vt); for(int i=0;i<n;i++) if((vt>>i)&1) kq[i]+=(1<<k); } for(int i=0;i<n;i++) output(kq[i]); } #ifdef SKY int main(void) { freopen("DECODE.inp","r",stdin); freopen("DECODE.out","w",stdout); int n,l; cin>>n>>l; int a[l]; for(int i=0;i<l;i++) cin>>a[i]; decode(n,l,a); return 0; } #endif // SKY

Compilation message (stderr)

decoder.cpp: In function 'void decode(int, int, int*)':
decoder.cpp:43:21: warning: unused variable 'f' [-Wunused-variable]
   43 |    int length=n*5/8,f[n];
      |                     ^
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