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| #include <bits/stdc++.h>
using namespace std;
int main()
{
int N, M;
cin >> N >> M;
vector<int> P(M, 0);
vector<int> Y(M, 0);
for (int i = 0; i < M; i++) {
cin >> P[i] >> Y[i];
P[i] -= 1;
}
vector<vector<int>> vals(N);
for (int i = 0; i < M; i++) {
vals[P[i]].push_back(Y[i]);
}
for (int p = 0; p < N; p++) {
sort(vals[p].begin(), vals[p].end());
vals[p].erase(unique(vals[p].begin(), vals[p].end()), vals[p].end());
}
for (int i = 0; i < M; i++) {
int p = P[i];
printf("%06d", p + 1);
int id = lower_bound(vals[p].begin(), vals[p].end(), Y[i]) - vals[p].begin();
printf("%06d\n", id + 1);
}
return 0;
}
|