1347: Unix-head

http://tk.hustoj.com/reinfo.php?sid=1324925

tk.hustoj.com/1347/1347.cpp

@@ -0,0 +1,22 @@
+#include <bits/stdc++.h>
+
+using namespace std;
+
+int main() {
+    string s;
+    getline(cin, s);
+    vector<string> args;
+    stringstream ss;
+    ss << s;
+    while (ss >> s) {
+        args.push_back(s);
+    }
+    int count = 10;
+    if (args.size() >= 2) count = -atoi(args[1].c_str());
+    while (getline(cin, s)) {
+        if (count-- > 0) {
+            cout << s << endl;
+        }
+    }
+    return 0;
+}