main() {int a, b, c; print("输入分子："); input(a); printf("输入分母："); input(b); if (a > b) printf("输入错误！"); else if (a = 1 or b mod a = 0) printf(a, "/", b, "=", "/", b / a); else while (a<> 1) {c = b / a + 1; a = a * c - b; b = b * c; if (a > 1) printf("+"); if (b mod a = 0 or a = 1) print("1/", b / a); a = 1; } } }写成完整代码

以下是完整代码：

#include <stdio.h>

int main() {
    int a, b, c;
    printf("输入分子：");
    scanf("%d", &a);
    printf("输入分母：");
    scanf("%d", &b);
    if (a > b) {
        printf("输入错误！");
    } else if (a == 1 || b % a == 0) {
        printf("%d/%d=/%d", a, b, b / a);
    } else {
        while (a != 1) {
            c = b / a + 1;
            a = a * c - b;
            b = b * c;
            if (a > 1) {
                printf("+");
            }
            if (b % a == 0 || a == 1) {
                printf("1/%d", b / a);
            }
            a = 1;
        }
    }
    return 0;
}

注意，为了让 scanf 函数读取用户输入的整数，我们需要使用 `%d` 格式化字符串。此外，条件判断语句中的 `or` 应该改为 `||`。

相关问题

main() {int a, b, c; print("输入分子："); input(a); print("输入分母："); input(b); if (a >= b) print("输入错误！"); else if (a = 1 or b mod a = 0) print(a, "/", b, "="1, "/", b / a); else while (a <> 1) {c = b / a + 1; a = a * c - b; b = b * c; print("1/"，c); if (a > 1) print("+"); if (b mod a = 0 or a = 1) print("1/", b / a); a = 1; } } }写出c代码

以下是基于伪代码的C语言实现：

#include <stdio.h>

int main() {
    int a, b, c;
    printf("输入分子：");
    scanf("%d", &a);
    printf("输入分母：");
    scanf("%d", &b);

    if (a >= b) {
        printf("输入错误！\n");
    } else if (a == 1 || b % a == 0) {
        printf("%d/%d = 1/%d\n", a, b, b / a);
    } else {
        while (a != 1) {
            c = b / a + 1;
            a = a * c - b;
            b = b * c;
            printf("1/%d", c);
            if (a > 1) {
                printf("+");
            }
            if (b % a == 0 || a == 1) {
                printf("1/%d", b / a);
            }
            a = 1;
        }
    }

    return 0;
}

注意：在使用C语言的时候，需要添加头文件，比如在这个程序中，需要添加`stdio.h`头文件，才能使用`printf()`和`scanf()`函数。

用C语言翻译如下代码：def LISR(l): k=l[0]^l[1]^l[2]^l[3]^l[4]^l[5]^l[6]^l[7] l[0]=l[1] l[1]=l[2] l[2]=l[3] l[3]=l[4] l[4]=l[5] l[5]=l[6] l[6]=l[7] l[7]=k return l; def strEncrypt(s1,s2,key):#每次传输8个字符,分成两组按位异或,密钥4个字符 result='' for i in range(0,8): temp=ord(s1[i])^ord(s2[i])^ord(key[i]) result+=chr(temp) #print(result) #print(result) return result def encode(plainText,keylist): cipherText='' for i in range(0,len(plainText)//16): temp=plainText[i*16:(i+1)*16]#每16个字符划分成一组加密 #print(temp) L=temp[:8] #print(L) R=temp[8:] #print(R) for currentKey in keylist: temp2=R R=strEncrypt(L,R,currentKey) #print(R) L=temp2 cipherText+=R+L return cipherText if __name__ == '__main__': key=[] a=input('请输入要加密的字符串，目前算法能处理的明文字符为16的整数倍') keynum=input('请输入加密循环次数') temp=[1,0,1,1,0,1,0,1] #print(''.join('%s' %id for id in temp)) for i in range(0,int(keynum)): temp=LISR(temp) print('第'+str(i)+'组加密时使用的密钥（4个字符）',''.join('%s' %id for id in temp)) key.append("".join('%s' %id for id in temp)) print('要加密的明文为：',a) #print(key) a=encode(a,key) print('密文：',a) #####解密 key.reverse() a=encode(a,key) print('解密后的明文：',a)

#include <stdio.h>
#include <string.h>

int* LISR(int* l) {
int k = l[0] ^ l[1] ^ l[2] ^ l[3] ^ l[4] ^ l[5] ^ l[6] ^ l[7];
l[0] = l[1];
l[1] = l[2];
l[2] = l[3];
l[3] = l[4];
l[4] = l[5];
l[5] = l[6];
l[6] = l[7];
l[7] = k;
return l;
}

char* strEncrypt(char* s1, char* s2, char* key) {
char* result = "";
for (int i=0; i<8; i++) {
int temp = s1[i] ^ s2[i] ^ key[i];
result[i] = temp;
}
return result;
}

char* encode(char* plainText, char keylist[][4], int keynum) {
char* cipherText = "";
for (int i=0; i<strlen(plainText)/16; i++) {
char* temp = "";
strncpy(temp, plainText+i*16, 16);
char* L = "";
strncpy(L, temp, 8);
char* R = "";
strncpy(R, temp+8, 8);
for (int j=0; j<keynum; j++) {
char* temp2 = "";
strncpy(temp2, R, 8);
R = strEncrypt(L, R, keylist[j]);
L = temp2;
}
strncat(cipherText, R, 8);
strncat(cipherText, L, 8);
}
return cipherText;
}

int main() {
char keylist[100][4];
char a[100];
printf("请输入要加密的字符串，目前算法能处理的明文字符为16的整数倍：");
scanf("%s", a);
int keynum;
printf("请输入加密循环次数：");
scanf("%d", &keynum);
int temp[] = {1, 0, 1, 1, 0, 1, 0, 1};
for (int i=0; i<keynum; i++) {
LISR(temp);
printf("第%d组加密时使用的密钥（4个字符）：%d %d %d %d\n", i, temp[0], temp[1], temp[2], temp[3]);
sprintf(keylist[i], "%d%d%d%d", temp[0], temp[1], temp[2], temp[3]);
}
printf("要加密的明文为：%s\n", a);
char* cipherText = encode(a, keylist, keynum);
printf("密文：%s\n", cipherText);
char keylist2[100][4];
memcpy(keylist2, keylist, sizeof(keylist));
for (int i=0; i<keynum; i++) {
memcpy(keylist[i], keylist2[keynum-i-1], sizeof(keylist2[keynum-i-1]));
}
char* plainText = encode(cipherText, keylist, keynum);
printf("解密后的明文：%s\n", plainText);
return 0;
}