20220118-40

Author: mok0102

1018

@@ -0,0 +1,27 @@
+#include <iostream>
+
+int main(){
+    int n, m;
+    char b[51][51];
+    scanf("%d%d", &n, &m);
+    for(int i=0;i<n;i++){
+        scanf("%s", b[i]);
+    }
+
+    int min=10000000;
+    for(int sx=0;sx<=n-8;sx++){
+        for(int sy=0;sy<=m-8;sy++){
+            int wrong=0;
+            for(int i=sx;i<sx+8;i++){
+                for(int j=sy;j<sy+8;j++){
+                    if((i+j)%2==0 && b[i][j]=='B') wrong++;
+                    else if((i+j)%2==1 && b[i][j]=='W') wrong++;
+                }
+            }
+            wrong=(wrong<64-wrong)?wrong:64-wrong;
+            if(wrong<min) min=wrong;
+        }
+    }
+    printf("%d\n", min);
+
+}