Put everything in folders

vagen_till_c/ch2/interest3.c

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+#include <stdio.h>
+
+/* A simple program from the book "Vägen till C" to calculate for how long your
+ * money will have to sit in the bank at a given interest rate to reach the
+ * amount of money you'll want
+ */
+
+int main()
+{
+    float cap, want, interest;
+    int year;
+
+    printf("Invested capital: "); scanf("%f", &cap);
+    printf("Want sum: "); scanf("%f", &want);
+    printf("Interest? "); scanf("%f", &interest);
+    
+    year = 0;
+
+    /* As long as your capital at the bank is less than you want, keep rerunning
+     * the loop until we reach the amout we want. Each loop is one year.
+     */ 
+    while (cap < want)
+    {
+        year = year + 1;
+        cap = cap * (1 + interest / 100);
+    }
+
+    printf("The capital will have to be at the bank for %d years\n", year);
+    return 0;
+}