C语言编程问题

答案：
#include <stdio.h> #include <time.h> #include <string.h> #include <conio.h> void Creat(char* num); int Check(char* s); void Compare(char* num, char* s, int* A, int* B); void menu(void); void main() { int count,A,B,N; char num[5],s[5]; printf("Welcome!\n"); while(1) { Creat(num); printf("How many times will you try:",num); scanf("%d",&N); for (count=N;count>0;count--) { printf("\nYou have %d chances to guess:\n",count); scanf("%s",s); if( Check(s) < 0 ) { printf("Error!\nPlease Input Four Different Integers!\n"); count++; continue; } else { Compare(num,s,&A,&B); if (A==4) { printf("Congratulations!\n"); menu(); break; } else { printf("%dA%dB\n",A,B); if(count<=1) { printf("Sorry,you haven't guess the right number!\n"); printf("Answer Is : %s !\n",num); menu(); break; } } } } } } void Creat(char* num) { srand(time(NULL)); num[0]= rand()%10+'0'; do { num[1]= rand()%10+'0'; } while ( num[1]==num[0] ); do { num[2]= rand()%10+'0'; } while ( num[2]==num[1] || num[2]==num[0] ); do { num[3]= rand()%10+'0'; } while ( num[3]==num[2] || num[3]==num[1] || num[3]==num[0] ); num[4]='\0'; } int Check(char* s) { int i; if (strlen(s)!=4) { return -1; } for ( i=0; i<4; i++) { if( s[i]<'0' || s[i]>'9' ) { return -1; } } if(s[0]==s[1] || s[0]==s[2] || s[0]==s[3] || s[1]==s[2] || s[1]==s[3] || s[2]==s[3] ) { return -1; } return 1; } void Compare(char* num, char* s, int* A, int* B) { int i,j; *A=*B=0; for ( i=0; i<4; i++) { for ( j=0; j<4; j++) { if ( num[i]==s[j]) { if ( i==j ) { (*A)++; } else { (*B)++; } break; } } } } void menu(void) { char c; printf("1.Try Again\n2.Exit\n"); while(c=getch()) { if( c=='1' ) { clrscr(); return; } else if ( c=='2' ) { exit(0); } } } 
#include <stdio.h>
#include <stdlib.h>
#include <time.h>  
int main()
{
  int k,i,j,a[4],b[4],count,d,n;
  
  time_t t;
      srand((unsigned) time(&t));
      b[0]= rand()%9;
      for(i=1;i<4;i++)
      {
        rsm:k= rand()%9;
for(j=0;j<i;j++)
if(k==b[j])
goto rsm;
b[i]=k;
  }
 
  printf("\n请输入猜的次数： ");
  
  scanf("%d",&n);
  while(n--)
  {
   count=0;d=0;
       for(i=0;i<4;i++)
  {
scanf("%d",&a[i]);
}
  for(i=0;i<4;i++)
 {
if(b[i]==a[i])
  count++;
}
  printf("%dA",count);
  for(i=0;i<4;i++)
  for(j=0;j<4;j++)
  {
if(a[i]==b[j])
d++;
  }
  printf("%dB\n",d-count);
  if(count==4)
  {
printf("\nCongratulations!\n");

system("pause");
return 0; 
  }
  }
  printf("Sorry, you haven't guess the right number.\n");
  printf("随机产生的数："); 
  for(i=0;i<4;i++)
  {
   printf("%d ",b[i]);
  }
  system("pause");
}

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