uva 484 - The Department of Redundancy Department

#include <cstdio>
#include <map>
#include <vector>
using namespace std;

vector<int> order;
map<int, int> freq;

int main()
{
int n;
freq.clear();
while(scanf("%d", &n) != EOF)
{
if(freq.count(n)) freq
++;
else freq
= 1, order.push_back(n);
}
for(auto it = order.begin(); it != order.end(); ++ it)
printf("%d %d\n", *it, freq[*it]);

/*for(int i = 0; i < (int)order.size(); i++)
printf("%d %d\n", order[i], freq[order[i]]);*/
return 0;
}