check if an array is sub-array of another using ha

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#include <iostream> #include<map> using namespace std; int main() { int a[100],b[100],n,m,i,j=1; map<int ,int>m1; cin>>n>>m; for(i=0;i<n;i++) cin>>a[i]; for(i=0;i<m;i++) cin>>b[i]; for(i=0;i<n;i++) m1[a[i]]=i; for(i=0;i<m;i++) { if(m1.find(b[i])==m1.end()) { j=0; break; } } if(j==0) cout<<"no"; else cout<<"yes"; return 0; }
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