Solve day7 in rust

1 files changed, 122 insertions, 0 deletions

diff --git a/2022/Cpp/Day7/main.cpp b/2022/Cpp/Day7/main.cpp
new file mode 100755
index 0000000..893691c
--- /dev/null
+++ b/2022/Cpp/Day7/main.cpp
@@ -0,0 +1,122 @@
+#include<bits/stdc++.h>
+
+using namespace std;
+
+//pretty printing
+template<typename K, typename V>
+void printm(const map<K, V> &mp) {
+  cerr << "{" << endl;
+  for (auto p : mp) {
+    cerr << "  { " << p.first << " : " << p.second << " }\n";
+  }
+  cerr << "}" << endl;
+}
+template<typename T>
+void printv(const vector<T> &v) {
+  cerr << "[";
+  for (int i = 0; i < v.size(); i++) {
+    if (i == v.size() - 1) {
+      cerr << v[i];
+    } else {
+      cerr << v[i] << ", ";
+    }
+  }
+  cerr << "]\n";
+}
+
+template<typename T>
+void printvv(const vector<vector<T>> &v) {
+  cerr << "[\n";
+  for (auto &vec : v) {
+    cout << "  ";
+    printv(vec);
+  }
+  cerr << "]\n";
+}
+void print() {
+  cerr << "\n";
+}
+
+template<typename T, typename... TS>
+void print(T val, TS... vals) {
+  cerr << val << " ";
+  print(vals...);
+}
+
+bool isDir(string &s) {
+  return s[0] == 'd';
+}
+
+bool isFile(string &s) {
+  return s[0] >= '0' && s[0] <= '9';
+}
+
+long long sumDir(string fileName, map<string, vector<string>> &dirContent) {
+  if (isFile(fileName)) {
+    int firstSpace = fileName.find(' ');
+    cout << fileName.substr(0, firstSpace) << '\n';
+    return stoi(fileName.substr(0, firstSpace));
+  } else {
+    long long sum = 0;
+    for (auto subfile : dirContent[fileName]) {
+      // cout << subfile << '\n';
+      if (isFile(subfile)) {
+        sum += sumDir(subfile, dirContent);
+      } else {
+        sum += sumDir(subfile, dirContent);
+      }
+    }
+    return sum;
+  }
+}
+ 
+int main() {
+  string s;
+  vector<string> dirs;
+  map<string, long long> mp;
+  map<string, vector<string>> dirContent;
+  string cwd = "/";
+  vector<string> lines;
+ 
+  while(getline(cin, s)) {
+    lines.push_back(s);
+  }
+ 
+  for (int i = 0; i < lines.size(); i++) {
+    s = lines[i];
+    if (s[0] == '$') {
+      // it's a command
+      if (s[2] == 'l') {
+        // ls command
+        string prevline = lines[i - 1];
+        string tmp = prevline.substr(prevline.find(' ', 2) + 1);
+        cwd = tmp;
+        // cout << cwd << '\n';
+      } 
+    } else {
+      // it's a file or a dir
+      string prevline = lines[i - 1];
+      if (isDir(s)) {
+        string tmp = s.substr(s.find(' ') + 1);
+        dirContent[cwd].push_back(tmp);
+      } else if (isFile(s)) {
+        dirContent[cwd].push_back(s);
+        // cout << "file size: " << fsize << '\n';
+        // mp[cwd] += fsize;
+      }
+    } 
+  }
+
+  long long ans = 0;
+  for (auto [dir, ls] : dirContent) {
+    cout << "cwd: " << dir << '\n';
+    cout << "\t\t";
+    printv(ls);
+    // long long sum = sumDir(dir, dirContent);
+    // if (sum <= 100000) {
+    //   ans += sum;
+    // }
+  }
+  cout << ans << '\n';
+}
+