University and Razvan

/main.c/

// // Netflix movie analysis: top-10 by rating and # of reviews. // // <> // Windows with Visual Studio // U. of Illinois, Chicago // CS251, Spring 2017 // Project #01 //

// ignore stdlib warnings if working in Visual Studio: #define _CRT_SECURE_NO_WARNINGS

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

// // getFileName: inputs a filename from the keyboard, make sure the file can be // opened, and returns the filename if so. If the file cannot be opened, an // error message is output and the program is exited. // typedef struct Movies { char Movie_title[255]; int Movie_id; double Movie_avg;

}movies_struct;

char *getFileName() { char filename[512]; int fnsize = sizeof(filename) / sizeof(filename[0]);

// input filename from the keyboard: fgets(filename, fnsize, stdin); filename[strcspn(filename, "\r\n")] = '\0'; // strip EOL char(s):

// make sure filename exists and can be opened: FILE *infile = fopen(filename, "r"); if (infile == NULL) { printf("**Error: unable to open '%s'\n\n", filename); exit(-1); }

fclose(infile);

// duplicate and return filename: char *s = (char *)malloc((strlen(filename) + 1) * sizeof(char)); strcpy(s, filename);

return s; }

movies_struct Array_Intialize(char s,chart) { FILE infile; FILE *infile_1; char line[100]; char line_1[100]; int linesize=sizeof(line)/sizeof(line[0]) ; int N;//This is the number of movies; int R;//this is the number of Reviews int i; int x; int matches=0; double Sum=0; char *token; char *token_1; double Average; infile=fopen(s,"r"); infile_1=fopen(t,"r");

fgets(line, linesize,infile);
line[strcspn(line, "\r\n")] = '\0'	;
token=strtok(line,",");
N=atoi(token);
printf("this is number of movies: %d\n",N);

fgets(line_1, linesize,infile_1);
line_1[strcspn(line_1, "\r\n")] = '\0'	;
token=strtok(line_1,",");					
R=atoi(token);
printf("this is number of Reviews: %d\n",R);

movies_struct *array=(movies_struct*)malloc(sizeof(movies_struct)*N);

i=1;
fgets(line, linesize,infile);
line[strcspn(line, "\r\n")] = '\0'	;
while(i<N){	
	token=strtok(line,",");
	array[i].Movie_id=atoi(token);
	printf("%d",array[i].Movie_id );
	token=strtok(NULL,",");
	strcpy(array[i].Movie_title, token);
	printf("%s\n",array[i].Movie_title );
	
	//Here it begins to look for all the reviews that match the movie_id;
	infile_1=fopen(t,"r");
	fgets(line_1, linesize,infile_1);
	
	x=1;
	fgets(line_1, linesize,infile_1);
	line_1[strcspn(line_1, "\r\n")] = '\0'	;
	while(x<=R){
		token_1=strtok(line_1,",");
		if (atoi(token_1)==array[i].Movie_id){
			token_1=strtok(NULL,",");
			token_1=strtok(NULL,",");
			printf("%d\n",atoi(token_1));
			Sum=Sum+atoi(token_1);
		
			++matches;
		}
		fgets(line_1, linesize,infile_1);
		line_1[strcspn(line_1, "\r\n")] = '\0';
		++x;
		
	}//Here it finishes reading the review file
	fclose(infile_1);
	printf("Sum: %d\n",Sum);
	array[i].Movie_avg=Sum/matches;
	printf("Average: %f\n",array[i].Movie_avg);
	Sum=0;
	
	matches=0;
	fgets(line, linesize,infile);
	line[strcspn(line, "\r\n")] = '\0';
	++i;

} fclose(infile);

return array;

}

void sortNumReviews(){

}

void sortrating(char *s){

}

int main() { movies_struct *Y; // get filenames from the user/stdin: char *MoviesFileName = getFileName(); char *ReviewsFileName = getFileName();

Y=Array_Intialize(MoviesFileName,ReviewsFileName);

}