diff --git "a/data/3.C\350\257\255\350\250\200\351\253\230\351\230\266/3.\344\275\215\350\277\220\347\256\227/2.\344\272\214\350\277\233\345\210\266\346\225\260/cout.md" "b/data/3.C\350\257\255\350\250\200\351\253\230\351\230\266/3.\344\275\215\350\277\220\347\256\227/2.\344\272\214\350\277\233\345\210\266\346\225\260/cout.md"
deleted file mode 100644
index 834656c59561a69dff895ad87f80487f1b15e594..0000000000000000000000000000000000000000
--- "a/data/3.C\350\257\255\350\250\200\351\253\230\351\230\266/3.\344\275\215\350\277\220\347\256\227/2.\344\272\214\350\277\233\345\210\266\346\225\260/cout.md"
+++ /dev/null
@@ -1,74 +0,0 @@
-# 计算位数
-
-计算整数的二进制形式有多少位。
-
-## template
-
-```c
-#include <stdio.h>
-
-$code
-
-int main(char** args){
-    printf("bits(%d) has %d bits\n", 100, bits(100));
-    printf("bits(%d) has %d bits\n", 32, bits(32));
-    printf("bits(%d) has %d bits\n", 10, bits(10));
-    printf("bits(%d) has %d bits\n", 25, bits(25));
-    printf("bits(%d) has %d bits\n", 7, bits(7));
-    return 0;
-}
-```
-
-## 答案
-
-```c
-unsigned int bits(unsigned int x){
-    unsigned int n = 0;
-    while(x){
-        x >>= 1;
-        n++;
-    }
-    return n;
-}
-```
-
-## 选项
-
-### 位移计算没有保存
-
-```c
-unsigned int bits(unsigned int x){
-    unsigned int n = 0;
-    while(x){
-        x >> 1;
-        n++;
-    }
-    return n;
-}
-```
-
-### 没有括号导致流程错误
-
-```c
-unsigned int bits(unsigned int x){
-    unsigned int n = 0;
-    while(x)
-        x >>= 1;
-        n++;
-
-    return n;
-}
-```
-
-### 运算符错误
-
-```c
-unsigned int bits(unsigned int x){
-    unsigned int n = 0;
-    while(x){
-        x << 1;
-        n++;
-    }
-    return n;
-}
-```
\ No newline at end of file