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C++ STL Set 3 (map).cpp
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C++ STL Set 3 (map).cpp
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//{ Driver Code Starts
#include <bits/stdc++.h>
using namespace std;
void add_value(map<int, int> &m, int x, int y);
int find_value(map<int, int> &m, int x);
void print_contents(map<int, int> &m);
int main()
{
// your code goes here
int t;
cin >> t;
while (t--)
{
map<int, int> m;
int q;
cin >> q;
while (q--)
{
char c;
cin >> c;
if (c == 'a')
{
int x, y;
cin >> x >> y;
add_value(m, x, y);
}
if (c == 'b')
{
int y;
cin >> y;
cout << find_value(m, y) << " ";
}
if (c == 'c')
{
print_contents(m);
}
}
cout << endl;
}
return 0;
}
// } Driver Code Ends
/* Adds a value with key x and value y to the map*/
void add_value(map<int, int> &m, int x, int y)
{
m[x] = y;
}
/* Returns the value of the key
x if present else returns -1 */
int find_value(map<int, int> &m, int x)
{
if (m.find(x) != m.end())
{
return m[x];
}
return -1;
}
/* Prints contents of the map ie keys and values*/
void print_contents(map<int, int> &m)
{
for (auto i : m)
{
cout << i.first << " " << i.second << " ";
}
}