class Solution { public: vector<string> cellsInRange(string s) { char c1=s[0], r1=s[1], c2=s[3], r2=s[4]; vector<string> v; for(int i=0;i+c1<=c2;i++) { for(int j=0;j+r1<=r2;j++) { string p; p+=(c1+i); p+=(r1+j); v.push_back(p); } } return v; } };
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