735 solved

735.cpp

@@ -0,0 +1,72 @@
+#include <iostream>
+#include <set>
+#include <vector>
+#include <cstring>
+using namespace std;
+
+#define pow2(i) (1<<i)
+#define bit(i) (1<<i)
+#define isOdd(i) (i&1)
+#define isEven(i) (!(i&1))
+#define sz(i) i.size()
+#define REP(i, b, n) for (int i = b; i < n; i++)
+#define REPI(i, b, n) for (int i = b; i <= n; i++)
+#define rep(i, n) REP(i, 0, n)
+#define repi(i, n) REPI(i, 0, n)
+
+int main(void) {
+    int n;
+    set<int> scores;
+    bool taken[61][61][61];
+
+    scores.insert(50);
+
+    repi (i, 20) {
+        scores.insert(i);
+        scores.insert(i*2);
+        scores.insert(i*3);
+    }
+
+    vector<int> values(scores.begin(), scores.end());
+
+    while (cin >> n) {
+        if (n <= 0) {
+            cout << "END OF OUTPUT" << endl;
+            break;
+        }
+
+        memset(taken, false, sizeof(taken));
+
+        int combinations = 0, permutations = 0;
+
+        rep (i, values.size()) {
+            rep (j, values.size()) {
+                rep (k, values.size()) {
+                    if (values[i] + values[j] + values[k] != n) continue;
+
+                    permutations++;
+
+                    if (!taken[values[i]][values[j]][values[k]]) {
+                        taken[values[i]][values[j]][values[k]] = true;
+                        taken[values[i]][values[k]][values[j]] = true;
+                        taken[values[j]][values[i]][values[k]] = true;
+                        taken[values[j]][values[k]][values[i]] = true;
+                        taken[values[k]][values[i]][values[j]] = true;
+                        taken[values[k]][values[j]][values[i]] = true;
+                        combinations++;
+                    }
+                }
+            }
+        }
+
+        if (combinations == 0 && permutations == 0) {
+            cout << "THE SCORE OF " << n << " CANNOT BE MADE WITH THREE DARTS." << endl;
+        } else {
+            cout << "NUMBER OF COMBINATIONS THAT SCORES " << n << " IS " << combinations << "." << endl;
+            cout << "NUMBER OF PERMUTATIONS THAT SCORES " << n << " IS " << permutations << "." << endl;
+        }
+        cout << "**********************************************************************" << endl;
+    }
+
+    return 0;
+}