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//mult(a,b) returns (a*b)%MOD
//add(a,b) returns (a+b)%MOD
//MOD=1000000009, C=115381398 or 276147934
int hsh(string s, int id)
{
	int ans=0;
	for(int i=0;i<s.length();i++)
	{
		ans=mult(ans,C);
		ans=add(ans,s[i]-'a'+1);
	}
	return ans;
}

prog.cpp:4:9: error: ‘string’ was not declared in this scope
 int hsh(string s, int id)
         ^~~~~~
prog.cpp:4:9: note: suggested alternative: ‘struct’
 int hsh(string s, int id)
         ^~~~~~
         struct
prog.cpp:4:19: error: expected primary-expression before ‘int’
 int hsh(string s, int id)
                   ^~~
prog.cpp:4:25: error: expression list treated as compound expression in initializer [-fpermissive]
 int hsh(string s, int id)
                         ^

Standard output is empty