Add .clang-format and apply it

2021/puzzle-01-02.cc

@@ -3,30 +3,31 @@
 //
 
 #include <cstdlib>
+#include <iostream>
 #include <limits>
 #include <string>
-#include <iostream>
 #include <vector>
 
-int main(void) {
-    std::vector<unsigned long> nums;
-    unsigned incrs{0};
-    std::string line;
-    while (std::getline(std::cin, line)) {
-        nums.push_back(std::stoul(line));
+int main(void)
+{
+  std::vector<unsigned long> nums;
+  unsigned incrs{0};
+  std::string line;
+  while (std::getline(std::cin, line)) {
+    nums.push_back(std::stoul(line));
+  }
+  assert(nums.size() >= 3);
+  unsigned long prev{std::numeric_limits<unsigned long>::max()};
+  for (std::size_t pos = 0; pos <= nums.size() - 3; ++pos) {
+    unsigned long current{0};
+    for (std::size_t i = pos + 0; i < pos + 3; ++i) {
+      current += nums[i];
     }
-    assert(nums.size() >= 3);
-    unsigned long prev{std::numeric_limits<unsigned long>::max()};
-    for (std::size_t pos = 0; pos <= nums.size() - 3; ++pos) {
-        unsigned long current{0};
-        for (std::size_t i = pos + 0; i < pos + 3; ++i) {
-            current += nums[i];
-        }
-        if (current > prev) {
-            ++incrs;
-        }
-        prev = current;
+    if (current > prev) {
+      ++incrs;
     }
-    std::cout << "Number of increments: " << incrs << '\n';
-    return EXIT_SUCCESS;
+    prev = current;
+  }
+  std::cout << "Number of increments: " << incrs << '\n';
+  return EXIT_SUCCESS;
 }