1 #include<stdio.h> 2  3 void main() 4 { 5     int a[10] = {0}; 6     int i,j,t; 7     printf("input 10 numbers:\n"); 8     for (i = 0; i < 10; i++) { 9         scanf("%d", &a[i]);10     }11     printf("\n");12     13     for (j = 0; j < 9; j++) {14         for (i = 0; i < 9 - j; i++) {15             if (a[i] > a[i+1]) {16                 t = a[i];17                 a[i] = a[i+1];18                 a[i+1] = t;19             }20         }    21     }22     printf("The sorted numbers are:\n");23     for (i = 0; i < 10; i++) {24         printf("%d ", a[i]);25     }26     printf("\n");27 }

 1 #include<stdio.h> 2  3 int main() 4 { 5     int a[10] = {-12, 0, 6, 16, 23, 56, 80, 100, 110, 115}; 6     int n, low, high, mid, found; 7     low = 0; 8     high = 9; 9     found = 0;10     printf("Input a number to be searched:");11     scanf("%d", &n);12     13     while (low <= high) {14         mid = (low + high)/2;15         if (n == a[mid]) {16             found = 1;17             break;18         }19         else if (n > a[mid]) {20             low = mid + 1;21         }22         else {23             high = mid - 1;24         }25     }26     27     if (1 == found) {28         printf("The index of %d is %d\n", n, mid);29     }30     else {31         printf("There‘s no %d\n", n);32     }33     34     return 0;35 }