51 lines
1.1 KiB
C
51 lines
1.1 KiB
C
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/*
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* C program to find the number of occurences of a given number in a
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* list
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*/
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#include <stdio.h>
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void occur(int [], int, int, int, int *);
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int main()
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{
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int size, key, count = 0;
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int list[20];
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int i;
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printf("Enter the size of the list: ");
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scanf("%d", &size);
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printf("Printing the list:
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");
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for (i = 0; i < size; i++)
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{
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list[i] = rand() % size;
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printf("%d ", list[i]);
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}
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printf("
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Enter the key to find it's occurence: ");
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scanf("%d", &key);
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occur(list, size, 0, key, &count);
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printf("%d occurs for %d times.
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", key, count);
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return 0;
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}
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void occur(int list[], int size, int index, int key, int *count)
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{
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if (size == index)
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{
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return;
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}
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if (list[index] == key)
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{
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*count += 1;
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}
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occur(list, size, index + 1, key, count);
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}
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Enter the size of the list: 7
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Printing the list:
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1 4 2 5 1 3 3
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Enter the key to find it's occurence: 3
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3 occurs for 2 times.
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