337A

Author: fsq

.gitignore

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+*.in
+*.out

337A Puzzles.cpp

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+#include <iostream>
+#include <vector>
+#include <algorithm>
+
+using namespace std;
+
+int main() {
+    int n, m;
+    cin >> n >> m;
+    vector<int> a;
+    int crnt;
+    for (int t=0; t<m; ++t) {
+        cin >> crnt;
+        a.push_back(crnt);
+    }
+
+    sort(a.begin(), a.end());
+
+    int ans = INT_MAX;
+    for (int i=0; i+n<=a.size(); ++i) 
+        ans = min(ans, a[i+n-1]-a[i]);
+    cout << ans << endl;
+    return 0;
+}