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-rw-r--r--sorting_searching/distinct_numbers.cpp14
1 files changed, 14 insertions, 0 deletions
diff --git a/sorting_searching/distinct_numbers.cpp b/sorting_searching/distinct_numbers.cpp
new file mode 100644
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+++ b/sorting_searching/distinct_numbers.cpp
@@ -0,0 +1,14 @@
+// 1621. Distinct Numbers
+#include <bits/stdc++.h>
+using namespace std;
+
+int main() {
+ static int n, x;
+ set<int> s;
+ scanf("%d", &n);
+ for (int i = 0; i < n; i++) {
+ scanf("%d", &x);
+ s.insert(x);
+ }
+ printf("%d\n", (int)s.size());
+}