이 제출은 이전 버전의 oj.uz에서 채점하였습니다. 현재는 제출 당시와는 다른 서버에서 채점을 하기 때문에, 다시 제출하면 결과가 달라질 수도 있습니다.
#include <bits/stdc++.h>
using namespace std;
int n,q,C[(1<<21)],M[20],dp[2594323],ANS[1000006],Y[1000006],vs;
main () {
ios::sync_with_stdio(false);
cin>>n>>q;
M[0]=1;
for (int i=1; i<=13; i++)
M[i]=M[i-1]*3;
if (n<=13) {
for (int i=0; i<(1<<n); i++) {
char c;
cin>>c;
C[i]=c-'0';
int x=0;
for (int j=0; j<n; j++)
if (i&(1<<j)) x+=M[j];
dp[x]+=C[i];
}
for (int i=0; i<M[n]; i++) {
int x=i;
for (int j=n-1; j>=0; j--)
if (x-2*M[j]>=0) x-=2*M[j],dp[i]=(dp[i-2*M[j]]+dp[i-M[j]]);
else
if (x-M[j]>=0) x-=M[j];
}
for (int i=1; i<=q; i++) {
string s;
int x=0;
cin>>s;
for (int j=0; j<s.size(); j++)
if (s[s.size()-j-1]=='?') x+=2*M[j];
else
if (s[s.size()-j-1]=='1') x+=M[j];
printf("%d\n",dp[x]);
}
}
else {
for (int i=0; i<(1<<n); i++) {
char c;
cin>>c;
C[i]=c-'0';
}
int K=(n-13);
bool Bo[q][(1<<7)+5];
for (int i=1; i<=q; i++) {
string S;
cin>>S;
for (int k=S.size()-1; k>=K; k--) {
if (S[k]=='?') Y[i]+=2*M[k-S.size()+1];
else
if (S[k]=='1') Y[i]+=M[k-S.size()+1];
}
int Bit=0;
for (int k=0; k<K; k++)
if (S[k]=='1') Bit+=(1<<k);
for (int j=0; j<(1<<K); j++)
if (j&Bit==Bit) Bo[i][j]=1;
}
int Last2[M[13]+5];
for (int i=0; i<M[13]; i++) {
int x=i;
Last2[i]=-1;
for (int j=12; j>=0; j--)
if (x>=2*M[j]) { Last2[i]=j; break; }
else
if (x>=M[j]) x-=M[j];
}
for (int i=0; i<(1<<K); i++) {
for (int j=0; j<M[13]; j++)
dp[j]=0;
for (int j=0; j<(1<<13); j++) {
int x=0;
for (int k=0; k<13; k++)
if (i&(1<<k)) x+=M[k];
dp[x]=C[i*(1<<13)+j];
}
for (int j=0; j<M[13]; j++) {
int x=j;
if (Last2[j]==-1) continue;
dp[j]=(dp[j-2*M[Last2[j]]]+dp[j-M[Last2[j]]]);
}
for (int j=1; j<=q; j++) {
if (!Bo[j][i]) continue;
ANS[j]+=dp[Y[j]];
}
}
for (int i=1; i<=q; i++)
printf("%d\n",ANS[i]);
}
}
컴파일 시 표준 에러 (stderr) 메시지
snake_escaping.cpp:4:7: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
main () {
^
snake_escaping.cpp: In function 'int main()':
snake_escaping.cpp:38:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
for (int j=0; j<s.size(); j++)
~^~~~~~~~~
snake_escaping.cpp:72:14: warning: self-comparison always evaluates to true [-Wtautological-compare]
if (j&Bit==Bit) Bo[i][j]=1;
~~~^~~~~
snake_escaping.cpp:72:14: warning: suggest parentheses around comparison in operand of '&' [-Wparentheses]
snake_escaping.cpp:98:9: warning: unused variable 'x' [-Wunused-variable]
int x=j;
^
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