Initial commit

2022/city/12/energie/energie.cpp

@@ -0,0 +1,71 @@
+#include <fstream>
+#include <algorithm>
+#include <unordered_map>
+#include <cmath>
+using namespace std;
+
+ifstream input_stream;
+ofstream output_stream;
+
+
+void getNumRepr(int num, char res[10]) {
+    res[9] = '0' + (num % 10);
+    num /= 10;  // 406
+    res[8] = '0' + (num % 10);
+    num /= 10;  // 40
+    res[7] = '.';
+
+    for (int i = 6; i >= 0; i--) {
+        if (num > 0) {
+            res[i] = '0' + num % 10;
+            num /= 10;
+        } else {
+            res[i] = ' ';
+        }
+    }
+}
+
+int main() {
+    input_stream.open("energie.in");
+    output_stream.open("energie.out");
+
+    int N;
+    input_stream >> N;
+
+    int consume[N];
+    int sum = 0;
+    unordered_map<int, string> lnames, fnames;
+
+    for (int i = 0; i < N; i++) {
+        string tmp_lname, tmp_fname;
+        input_stream >> tmp_lname;
+        input_stream >> tmp_fname;
+        input_stream >> consume[i];
+        lnames[consume[i]] = tmp_lname;
+        fnames[consume[i]] = tmp_fname;
+        sum += consume[i];
+    }
+
+    double medium = double(sum) / double(N);
+    medium *= 100;
+    medium = round(medium);
+
+    char medRepr[10];
+    getNumRepr(int(medium), medRepr);
+
+    for (int i = 0; i < 10; i++) {
+        output_stream << medRepr[i];
+    }
+    output_stream << endl;
+
+    sort(consume, consume + N);
+    for (int i = N - 1; i >= 0; i--) {
+        output_stream << lnames[consume[i]] << " ";
+        output_stream << fnames[consume[i]] << " ";
+        output_stream << consume[i] << endl;
+    }
+
+    input_stream.close();
+    output_stream.close();
+    return 0;
+}