제출 #301197

#제출 시각아이디문제언어결과실행 시간메모리
301197TMJN자동 인형 (IOI18_doll)C++17
0 / 100
21 ms2672 KiB
#include "doll.h" #include <bits/stdc++.h> using namespace std; static int c; static vector<int>K; static vector<int>X,Y,C; int dfs(int num,int dep){ if(num+(1<<dep)>=K.size()){ return K[num]; } else{ int t=c; c++; X[t]=dfs(num,dep+1); Y[t]=dfs(num+(1<<dep),dep+1); return -t-1; } } void create_circuit(int M,vector<int>A){ c=0; K=A; X=Y=vector<int>(100000,0); C=vector<int>(M+1,0); for(int i=0;;i++){ if(K.size()<(1<<i)){ while(K.size()<(1<<i)){ K.push_back(-c-1); c++; } c--; K.back()=0; break; } } int cc=c; int tt=dfs(0,0); C=vector<int>(M+1,tt); for(int i=0;i<cc;i++){ X[i]=-i-1; Y[i]=tt; } vector<bool>B(400000,false); int p=0; vector<int>T; int cnt=0; do{ cnt++; if(p>=0){ if(p)T.push_back(p); p=C[p]; } else{ if(B[-p-1]){ B[-p-1]=!B[-p-1]; p=Y[-p-1]; } else{ B[-p-1]=!B[-p-1]; p=X[-p-1]; } } }while(p); assert(A==T); bool f=false; for(int i=0;i<400000;i++){ f|=B[i]; } assert(!f); for(int i:C){ assert(-(int)X.size()<=i&&i<=M); } for(int i:X){ assert(-(int)X.size()<=i&&i<=M); } for(int i:Y){ assert(-(int)X.size()<=i&&i<=M); } assert(cnt<=20000000); answer(C,X,Y); }

컴파일 시 표준 에러 (stderr) 메시지

doll.cpp: In function 'int dfs(int, int)':
doll.cpp:11:17: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   11 |  if(num+(1<<dep)>=K.size()){
      |     ~~~~~~~~~~~~^~~~~~~~~~
doll.cpp: In function 'void create_circuit(int, std::vector<int>)':
doll.cpp:29:14: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   29 |   if(K.size()<(1<<i)){
      |      ~~~~~~~~^~~~~~~
doll.cpp:30:18: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   30 |    while(K.size()<(1<<i)){
      |          ~~~~~~~~^~~~~~~
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