new file: assignment1/Summer_Assignment1_2014.pdf

new file:   assignment1/assignment1_reading_sample.cpp
	new file:   assignment1/assignment1_reading_sample_iostream.cpp
	new file:   assignment1/matrix1.txt

assignment1/assignment1_reading_sample.cpp

@@ -0,0 +1,55 @@
+//159201 assignment 1 skeleton
+//You need to add your own AddNode and PrintLL functions, as well as an AddMatrices function
+//
+
+#include <stdio.h>
+#include <stdlib.h>
+struct Node {  //declaration
+	int row;
+	int column;
+	int value;
+	Node *next;
+};
+Node *A, *B;  //declaration
+
+
+void read_matrix(Node* &a, char *file_name){
+    //reads a matrix from a file
+    
+    int col = 0, row = 0, value = 0;  
+    FILE *input = NULL;
+    input = fopen(file_name, "r");
+    
+    if(input == NULL){
+        printf("Cannot open file %s. Exiting.\n", file_name);
+        exit(0);
+    }
+    //reads the matrix dimensions from the first line 
+    fscanf(input, "%d %d", &row, &col); 
+    
+    //read matrix 
+    for(int i = 0; i < row; ++i){
+        for(int j = 0; j < col; ++j){
+	    //reads each value from this row (second line onwards)
+            fscanf(input, "%d", &value);
+            if(value == 0) continue;
+	    //
+            //Include your own add_node(a, i, j, value); function here
+	    //
+	    //The next line is for debbuging, it can be commented later
+	    printf("Element at (%d %d) is different than zero and it is: %d ",i,j,value);
+        }
+	//the next line is for debbuging purposes, it can be commented out later
+	printf("\n");
+    }
+    
+    fclose(input);
+}
+
+int main( int argc, char** argv ) {
+	if(argc!=3) {printf("needs two matrices \n"); exit(0);}
+        read_matrix(A, argv[1]);
+	read_matrix(B, argv[2]);
+	
+}
+

assignment1/assignment1_reading_sample_iostream.cpp

@@ -0,0 +1,66 @@
+//159201 assignment 1 skeleton
+//You need to add your own AddNode and PrintLL functions, as well as an AddMatrices function
+//
+#include <stdio.h>
+#include <stdlib.h>
+#include <iostream>
+#include <fstream>
+#include <sstream>
+//#include <string>
+
+using namespace std;
+
+struct Node {  //declaration
+	int row;
+	int column;
+	int value;
+	Node *next;
+};
+Node *A, *B;  //declaration
+
+
+void read_matrix(Node* &a, char *file_name){
+    //reads a matrix from a file
+    int col = 0, row = 0, value = 0;  
+    ifstream input;
+    input.open(file_name);
+    if(!input.good()){
+        cout << "Cannot open file " << file_name << endl;
+        exit(0);
+    }
+    int c;
+    string line;
+    //reads the first line to get dimensions
+    if(input.good()){
+	    getline(input,line);
+	    stringstream sline(line);
+	    sline >> row >> col;
+	    cout << "Matrix dimensions " << row << " " << col << endl;
+    }
+    //read matrix 
+    for(int i = 0; i < row; ++i){
+        if(input.good()) {
+		getline(input,line);
+		stringstream sline(line);
+        	for(int j = 0; j < col; ++j){
+		sline >> value;
+	        if(value == 0) continue;
+	    //
+            //Include your own add_node(a, i, j, value); function here
+	    //
+	    //The next line is for debbuging, it can be commented later
+		cout << "Element at (" << i << " " << j << ") is different than zero and it is: "<< value <<" ";
+          	}
+	//the next line is for debbuging purposes, it can be commented out later
+	cout << endl;
+	}
+    }
+    input.close();
+}
+
+int main( int argc, char** argv ) {
+	if(argc!=3) {printf("needs two matrices \n"); exit(0);}
+        read_matrix(A, argv[1]);
+	read_matrix(B, argv[2]);
+	
+}

assignment1/matrix1.txt

@@ -0,0 +1,5 @@
+4 4
+0 1 0 0 
+0 0 2 0 
+0 3 0 4
+0 0 0 5