Added other excercises

C-RK/C-RK-Week1/main.c

@@ -19,6 +19,7 @@ void main()
 	printf("Nieuw string: %s\n", s1);*/
 
 	//gaat goed
+	/*
 	char s1[10];
 	strcpy(s1, "taart");
 
@@ -44,7 +45,29 @@ void main()
 	strcpy(s6, "verjaardagstaart");
 
 	printf("Result taart en verjaardagstaart: %d\n", strend(s5, s6));
+	*/
 
+	//fahrenheit();
+	//celsius();
+
+	//char str[128];
+	//strcpy(str, "Hallo dit is een zin die best wel heel erg lang zou kunnen zijn voor c programming");
+	//reverse_string(str);
+
+	//char str[32];
+	//strcpy(str, "Test    f    ");
+	//printf("%s:\n", str);
+	//trim(str);
+	//printf("%s:\n", str);
+
+	char str1[32];
+	char str2[16];
+
+	strcpy(str1, "acccddddefghijk");
+	strcpy(str2, "bdcgij");
+
+	//remove_chars(str1, str2);
+	printf("Index of first same char: %d\n",first(str1, str2));
 }
 
 void strCat(char* a, char* b)
@@ -81,4 +104,204 @@ int strend(char s[], char t[])
 	}
 
 	return 1;
+}
+
+void fahrenheit(void)
+{
+	float fahr, celsius;
+	int laagste, hoogste, interval;
+
+	laagste = 0;
+	hoogste = 300;
+	interval = 20;
+
+	fahr = laagste;
+
+	printf("\n F    C\n");
+	printf("-----------\n");
+
+	while (fahr <= hoogste)
+	{
+		celsius = (5.0 / 9.0) * (fahr - 32.0);
+		printf("%3.0f %6.1f\n", fahr, celsius);
+		fahr = fahr + interval;
+	}
+}
+
+void celsius(void)
+{
+	float fahr, celsius;
+	int laagste, hoogste, interval;
+
+	laagste = 0;
+	hoogste = 150;
+	interval = 10;
+
+	celsius = laagste;
+
+	printf("\n C    F\n");
+	printf("-----------\n");
+
+	while (celsius <= hoogste)
+	{
+		fahr = (celsius*1.8) + 32.0;
+		printf("%3.0f %6.1f\n", celsius, fahr);
+		celsius = celsius + interval;
+	}
+}
+
+void histogram_length(char * string)
+{
+	int length = 0;
+
+	strcat(string, " ");
+
+	printf("%s\n", string);
+
+	for (; *string; string++)
+	{
+		if (*string != ' ' && *string != '\0')
+		{
+			length++;
+		}
+		else
+		{
+			for (int i = 0; i < length; i++)
+				printf("-");
+
+			printf("\n");
+			length = 0;
+		}
+	}
+}
+
+void histogram_freq(char * string)
+{
+	int chfreq[128] = {0};
+
+	printf("%s\n", string);
+
+	for (; *string; string++)
+	{
+		if (*string == ' ')
+			continue;
+
+		int chid = *string - '0';
+		chfreq[chid]++;
+	}
+
+	for (int i = 0; i < 128; i++)
+	{
+		if (chfreq[i] != 0)
+		{
+			printf(" %c ", i + '0');
+
+			for (int p = 0; p < chfreq[i]; p++)
+				printf("-");
+
+			printf("\n");
+		}
+	}
+}
+
+void reverse_string(char * string)
+{
+	int chars = strlen(string);
+
+	char *buffer = malloc(sizeof(char) * chars);
+
+	int t = chars - 1;
+
+	for (int i = t; i >= 0; i--)
+	{
+		buffer[chars - 1 - i] = string[i];
+	}
+
+	strncpy(string, buffer, chars);
+
+	printf("%s\n", string);
+
+	free(buffer);
+}
+
+void trim(char *str)
+{
+	char *end;
+
+	if (*str == 0)  // All spaces?
+		return;
+
+	// Trim trailing space
+	end = str + strlen(str) - 1;
+	while (end > str && isspace(*end)) end--;
+
+	// Write new null terminator
+	*(end + 1) = '\0';
+
+	str = end;
+}
+
+void remove_chars(char * str1, char * str2)
+{
+	int chex[128] = { 0 };
+
+	for (; *str2; str2++)
+	{
+		if (*str2 == ' ')
+			continue;
+
+		int chid = *str2 - '0';
+		chex[chid] = 1;
+	}
+
+	int chars = strlen(str1);
+	int count = 0;
+
+	char *buffer = malloc(sizeof(char) * chars);
+
+	for (; *str1; str1++)
+	{
+		if (chex[*str1 - '0'] != 1)
+		{
+			printf("Char %c stays\n", *str1);
+			buffer[count] = *str1;
+			count++;
+		}
+		else
+			printf("Char %c removed\n", *str1);
+	}
+
+	str1[count] = '\0';
+
+	strncpy(str1, buffer, count);
+
+	printf("%s\n", str1);
+
+	free(buffer);
+}
+
+int first(char * str1, char * str2)
+{
+	int chex[128] = { 0 };
+
+	for (; *str2; str2++)
+	{
+		if (*str2 == ' ')
+			continue;
+
+		int chid = *str2 - '0';
+		chex[chid] = 1;
+	}
+
+	int count = 0;
+
+	for (; *str1; str1++)
+	{
+		if (chex[*str1 - '0'] == 1)
+		{			
+			return count;
+		}
+		count++;
+	}
+	return -1;
 }

C-RK/C-RK-Week1/main.h

@@ -1,3 +1,11 @@
 #pragma once
+void fahrenheit(void);
+void celsius(void);
+void histogram_length(char *);
+void histogram_freq(char *);
+void reverse_string(char *);
+void trim(char *);
+void remove_chars(char *, char *);
+int first(char *, char *);
 void strCat(char* a, char* b);
 int strend(char s[],char t[]);