'commit'

TangDou/LanQiaoBei/LanQiao14STEMA202208/5_dp.cpp

@@ -0,0 +1,32 @@
+#include <bits/stdc++.h>
+
+using namespace std;
+
+const int N = 2010;
+char a[N], b[N];
+int al, bl;
+int f[N][N];
+
+int main() {
+    cin >> a + 1 >> b + 1;
+    al = strlen(a + 1), bl = strlen(b + 1);
+
+    //初始化
+    for (int i = 1; i <= bl; i++) f[0][i] = i;
+    for (int i = 1; i <= al; i++) f[i][0] = i;
+
+    for (int i = 1; i <= al; i++)
+        for (int j = 1; j <= bl; j++) {
+            //增加删除
+            f[i][j] = min(f[i - 1][j] + 1, f[i][j - 1] + 1);
+            //修改
+            if (a[i] == b[j])
+                f[i][j] = min(f[i][j], f[i - 1][j - 1]);
+            else
+                f[i][j] = min(f[i][j], f[i - 1][j - 1] + 1);
+        }
+
+    printf("%d\n", f[al][bl]);
+
+    return 0;
+}