Find the value with a given key
#include <iostream>
#include <map>
using namespace std;
int main()
{
map<char, int> m;
int i;
for(i=0; i<26; i++) {
m.insert(pair<char, int>('A'+i, 65+i));
}
char ch;
cout << "Enter key: ";
cin >> ch;
map<char, int>::iterator p;
p = m.find(ch);
if(p != m.end())
cout << "Its ASCII value is " << p->second;
else
cout << "Key not in map.\n";
return 0;
}
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