Submission #516046

#TimeUsernameProblemLanguageResultExecution timeMemory
516046MahdiIli (COI17_ili)C++17
0 / 100
1 ms204 KiB
#include<bits/stdc++.h> #pragma GCC optimize("Ofast") using namespace std; #define all(v) v.begin(), v.end() #define F first #define S second typedef long long ll; typedef pair<int, int> pii; const int N=50; int n, m, l[N], r[N], a[N], b[N]; string s; int main(){ ios_base::sync_with_stdio(0); cin.tie(0); cin>>n>>m>>s; memset(l, -1, 4*n); memset(r, -1, 4*n); for(int i=0;i<m;++i){ string x; cin>>x; if(x[0]=='x') l[i+n]=x[1]-'1'; else l[i+n]=n+x[1]-'1'; cin>>x; if(x[0]=='x') r[i+n]=x[1]-'1'; else r[i+n]=n+x[1]-'1'; } int z=0; for(int i=0;i<(1<<n);++i){ int x=i; for(int j=0;j<n;++j){ b[j]=x&1; x>>=1; } for(int j=n;j<n+m;++j) b[j]=b[l[j]]|b[r[j]]; bool bl=true; for(int j=0;j<m;++j){ if((s[j]=='1' && b[j+n]==0) || (s[j]=='0' && b[j+n]==1)){ bl=0; break; } } if(bl){ for(int j=n;j<n+m;++j) a[j]+=b[j]; ++z; } } for(int i=n;i<n+m;++i){ if(a[i]==0) cout<<'0'; else if(a[i]==z) cout<<'1'; else cout<<'?'; } cout<<'\n'; }
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