mit的难题（有误）

4083_mit/Readme.md

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+# 标题
+
+* 内容

4083_mit/doc/Readme.md

@@ -0,0 +1,3 @@
+# 标题
+
+* 内容

4083_mit/main.cpp

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+#include <iostream>
+
+int main()
+{
+    std::cout << "Hello Easy C++ project!" << std::endl;
+}

4083_mit/mit.cpp

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+#include <iostream>
+using namespace std;
+int main()
+{
+    int n, m, ans = 0;
+    int pa[100001] = { 0 }, zhi[100001] = { 0 };
+    cin >> n >> m;
+    for (int i = 1; i <= m; i++) {
+        char u;
+        int a, b;
+        cin >> u >> a >> b;
+        //00
+        if (pa[a] == 0 && pa[b] == 0) {
+            ans++;
+            pa[a] = ans;
+            pa[b] = ans;
+            zhi[ans] = ans;
+        } else {
+            //11
+            while(zhi[pa[a]] !=pa[a]){
+                a=zhi[pa[a]]
+            }
+            if (zhi[pa[a]] != zhi[pa[b]] && pa[a] > 0 && pa[b] > 0) {
+                ans--;
+                zhi[pa[a]] = zhi[pa[b]];
+            } else {
+                //10
+                if (zhi[pa[a]] > 0) {
+                    pa[b] = pa[a];
+                } else {
+                    //01
+                    pa[a] = pa[b];
+                }
+            }
+        }
+    }
+    cout << "1";
+    for (int i = 1; i <= ans; i++) {
+        cout << "0";
+    }
+}

4083_mit/test/in.txt

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+3 2
+S 1 2
+D 3 2

4083_mit/test/out.txt

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+## z:\Chao\src\4083_mit\test\in.txt 
+2020/04/06 周一 12:33:23.89 
+10
+-----------------------------------------------
+Process exited after 260 ms with return value 0
+
+## z:\Chao\src\4083_mit\test\In1 (19).txt 
+2020/04/06 周一 12:33:23.89 
+1
+-----------------------------------------------
+Process exited after 190 ms with return value 0
+
+## z:\Chao\src\4083_mit\test\In2 (12).txt 
+2020/04/06 周一 12:33:23.89 
+1
+-----------------------------------------------
+Process exited after 210 ms with return value 0
+