git reimport

archive/2018.04/2018.04.07 - unsorted/TaskA.java

@@ -0,0 +1,69 @@
+package chelper;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import io.InputReader;
+import io.OutputWriter;
+import misc.GCJSolution;
+import misc.SimpleSavingChelperSolution;
+
+
+public class TaskA extends GCJSolution {
+
+  public void solve(int testNumber, InputReader in, OutputWriter out) {
+    wrapSolve(testNumber, in, out);
+  }
+
+  long get(List<Integer> a) {
+    long res = 0;
+    long t = 1;
+    for (int i : a) {
+      res += i * t;
+      t *= 2;
+    }
+    return res;
+  }
+
+  @Override
+  public void solve(int testNumber) {
+    long d = in.nextLong();
+    String s = in.nextString();
+
+    List<Integer> a = new ArrayList<>();
+
+    int t = 0;
+
+    for (char c : s.toCharArray()) {
+      if (c == 'C') {
+        a.add(t);
+        t = 0;
+      }
+      if (c == 'S') {
+        t++;
+      }
+    }
+    if (t > 0) {
+      a.add(t);
+    }
+
+    int c = 0;
+
+    while (get(a) > d) {
+      c++;
+      if (a.size() == 1) {
+        out.println("IMPOSSIBLE");
+        return;
+      }
+
+      a.set(a.size() - 1, a.get(a.size() - 1) - 1);
+      a.set(a.size() - 2, a.get(a.size() - 2) + 1);
+
+      if (a.get(a.size() - 1) == 0) {
+        a.remove(a.size() - 1);
+      }               
+    }
+
+    out.println(c);
+  }
+}