Add 04287.cpp

04xxx/04287.cpp

@@ -0,0 +1,29 @@
+#include <iostream>
+#include <string>
+using namespace std;
+
+inline int c2i(char c) { return c - 'a'; }
+inline char i2c(int i) { return i + 'a'; }
+inline int mod(int a, int b) { return (a % b + b) % b; }
+
+bool solve(void) {
+  string a; cin >> a;
+  if (a == "#") return false;
+  string b, c; cin >> b >> c;
+
+  string ans = "";
+  for (int i=0; i<a.length(); i++) {
+    int d = mod(c2i(b[i]) - c2i(a[i]), 26);
+    ans += i2c(mod(c2i(c[i]) + d, 26));
+  }
+  cout << a << " " << b << " " << c << " " << ans << "\n";
+  return true;
+}
+
+int main(void) {
+  ios::sync_with_stdio(false);
+  cin.tie(nullptr);
+
+  while (solve());
+  return 0;
+}