#include <stdio.h>
#include <stdlib.h>

int main() {
	int count=0;
	int j = 20;
	int i = 0;
	char arr[20];
	FILE *source;
	source = fopen("D:file1.txt", "r"); //open source

while (fgets(arr, 20, source) != NULL)
//	printf("%c %c %c %c %c %c... and so on\n", arr[0], arr[1], arr[2], arr[3], arr[4], arr[5]); //TEST
	for( i=0 ; i<(j-4) ; i++ ){
		if( (arr[i]=='t') && (arr[i+1]=='e') && (arr[i+2]=='k') && (arr[i+3]=='s') && (arr[i+4]=='t') ) {
//			printf("if runs"); //TEST
			count++;
		}
	}

	printf("I have found such phrase %d times.\n", count);



	fclose(source);
	system("pause");
	return 0;
}