北邮考研复试C语言上机题目精选

  #include <stdio.h> 
  #include <stdlib.h> 
   
  int main() 
  { 
    int a[101], b[101]; 
    int n, m, i, j, flag; 
   
    while(scanf("%d", &n) != EOF) 
    { 
      //接收输入数组 
      for(i = 0; i < n; i ++) 
      { 
        scanf("%d", a + i); 
      } 
      //接收查找数组 
      scanf("%d", &m); 
      for(j = 0; j < m; j ++) 
      { 
        scanf("%d", b + j); 
      } 
      //判断查找存在 
      for(j = 0; j < m; j ++) 
      { 
        flag = 0; 
        for(i = 0; i < n; i ++) 
        { 
          if(b[j] == a[i]) 
          { 
            flag = 1; 
            break; 
          } 
        } 
        if(flag) 
        { 
          printf("YES\n"); 
        }else 
        { 
          printf("NO\n"); 
        } 
      } 
    } 
    return 0; 
  } 

  #include <stdio.h> 
  #include <stdlib.h> 
   
  int partition(int *A, int left, int right); 
  void quicksort(int *A, int begin, int end); 
   
  int main() 
  { 
    int i, j, n, k; 
    int a[1001]; 
   
    while(scanf("%d",&n) != EOF) 
    { 
      //接受stdin输入数据 
      for(i = 0; i < n; i ++) 
      { 
        scanf("%d",a + i); 
      } 
      scanf("%d",&k); 
   
      //快速排序 
      quicksort(a, 0, n - 1); 
   
      //输出第k小的数 
      for(i = 0, j = 0; i < n && j < k; i ++) 
      { 
        if(a[i] != a[i + 1]) 
        { 
          if(j == k - 1) 
          { 
            printf("%d\n",a[i]); 
            break; 
          }else 
          { 
            j ++; 
          } 
        } 
      } 
    } 
   
    return 0; 
  } 
   
  void quicksort(int *A, int begin, int end) 
  { 
    int pivot; 
   
    if(begin < end) 
    { 
      pivot = partition(A, begin, end); 
      quicksort(A, begin, pivot - 1); 
      quicksort(A, pivot + 1, end); 
    } 
  } 
   
  int partition(int *A, int left, int right) 
  { 
    int stand = A[left]; 
   
    while(left < right) 
    { 
      while(left < right && A[right] >= stand) 
      { 
        right --; 
      } 
      if(left < right) 
      { 
        A[left ++] = A[right]; 
      } 
      while(left < right && A[left] <= stand) 
      { 
        left ++; 
      } 
      if(left < right) 
      { 
        A[right --] = A[left]; 
      } 
    } 
    A[left] = stand; 
   
    return left; 
  } 

  #include <stdio.h> 
  #include <stdlib.h> 
  #include <string.h> 
   
  int main() 
  { 
    char a[101]; 
    char b[101]; 
    char ch, key; 
    int i, lena, lenb, flag; 
    int count[11]; 
   
   
    while(scanf("%s",a) != EOF) 
    { 
      //接收回车符 
      ch = getchar(); 
      //接收出牌 
      scanf("%s",b); 
      ch = getchar(); 
      //长度 
      lena = strlen(a); 
      lenb = strlen(b); 
      //初始化 
      memset(count,0,sizeof(count)); 
      //遍历手牌 
      for(i = 0; i < lena; i ++) 
      { 
        count[a[i] - '0'] ++; 
      }   
      //检测对方出牌 
      switch(lenb) 
      { 
        case 1: 
        case 2: 
        case 3: 
        case 4: 
          flag = 0; 
          for(key = b[0] - '0' + 1; key <= 9; key ++) 
          { 
            if(count[key] >= lenb) 
            { 
              flag = 1; 
              break; 
            }         
          } 
          break; 
        case 5: 
          flag = 0; 
          for(key = b[0] - '0' + 1; key < 9; key ++) 
          { 
            if(count[key] > 0 && count[key + 1] > 0 && count[key + 2] > 0 && count[key + 3] > 0 && count[key + 4] > 0) 
            { 
              flag = 1; 
              break; 
            }   
          } 
          break; 
      } 
      //打印输出 
      if(flag) 
      { 
        printf("YES\n"); 
      }else 
      { 
        printf("NO\n"); 
      } 
   
    } 
    return 0; 
  }