제출 #135252

#제출 시각아이디문제언어결과실행 시간메모리
135252zoooma13앵무새 (IOI11_parrots)C++14
98 / 100
24 ms1776 KiB
#include "bits/stdc++.h" #include "encoder.h" #include "encoderlib.h" using namespace std; void encode(int N, int M[]) { srand(879465); vector <int> ord(N); iota(ord.begin() ,ord.end() ,0); random_shuffle(ord.begin() ,ord.end()); vector <int> m(N); for(int i=0; i<N; i++) m[i] = M[ord[i]]^(rand()%256); vector <bool> bin(8*N ,0); for(int i=0; i<N; i++) for(int j=0; j<8; j++) bin[8*i+j] = m[i]&(1<<j); for(int i=0; i<bin.size(); i++) if(bin[i]){ send(i & 255); if(i >= 256) send(i & 255); } }
#include "bits/stdc++.h" #include "decoder.h" #include "decoderlib.h" using namespace std; void decode(int N, int L, int X[]) { srand(879465); vector <int> ord(N) ,iord(N); iota(ord.begin() ,ord.end() ,0); random_shuffle(ord.begin() ,ord.end()); for(int i=0; i<N; i++) iord[ord[i]] = i; vector <bool> bin(8*N ,0); for(int i=0; i<L; i++){ if(count(X ,X+L ,X[i]) == 3) bin[256|X[i]] = 1 ,bin[X[i]] = 1; else if(count(X ,X+L ,X[i]) == 2) bin[256|X[i]] = 1; else if(count(X ,X+L ,X[i]) == 1) bin[X[i]] = 1; } vector <int> M(N); for(int i=0; i<N; i++){ for(int j=0; j<8; j++) M[i] |= (1<<j)*bin[8*i+j]; M[i] ^= rand()%256; } for(int i=0; i<N; i++) output(M[iord[i]]); }

컴파일 시 표준 에러 (stderr) 메시지

encoder.cpp: In function 'void encode(int, int*)':
encoder.cpp:21:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for(int i=0; i<bin.size(); i++)
                  ~^~~~~~~~~~~
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