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authorsijanec <sijanecantonluka@gmail.com>2020-12-08 20:52:56 +0100
committersijanec <sijanecantonluka@gmail.com>2020-12-08 20:52:56 +0100
commit404e440e9b119d1f1578dc2941ed5cdf1c3e9e8b (patch)
tree5d24686b06f8e86134ae1edf0d83b7811e1ca0d1 /mat/euler/17/angnum.c
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Diffstat (limited to 'mat/euler/17/angnum.c')
-rw-r--r--mat/euler/17/angnum.c115
1 files changed, 115 insertions, 0 deletions
diff --git a/mat/euler/17/angnum.c b/mat/euler/17/angnum.c
new file mode 100644
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+++ b/mat/euler/17/angnum.c
@@ -0,0 +1,115 @@
+#pragma once
+#include <stdio.h>
+#include <stdlib.h>
+#include <math.h>
+/* definiramo jezik - ZAČETEK */
+#define J_0 "zero"
+#define J_1 "one"
+#define J_2 "two"
+#define J_3 "three"
+#define J_4 "four"
+#define J_5 "five"
+#define J_6 "six"
+#define J_7 "seven"
+#define J_8 "eight"
+#define J_9 "nine"
+#define J_10 "ten"
+#define J_11 "eleven"
+#define J_12 "twelve"
+#define J_13 "thirteen"
+#define J_14 "fourteen"
+#define J_15 "fiveteen"
+#define J_16 "sixteen"
+#define J_17 "seventeen"
+#define J_18 "eighteen"
+#define J_19 "nineteen"
+#define J_20 "twenty"
+#define J_30 "thirty"
+#define J_40 "forty"
+#define J_50 "fifty"
+#define J_60 "sixty"
+#define J_70 "seventy"
+#define J_80 "eighty"
+#define J_90 "ninety"
+#define J_1h "hundred"
+#define J_1k "thousand"
+#define J_1M "million"
+#define J_1G "billion"
+#define J_1T "trillion"
+#define J_AND "and"
+#define J_EMPTY ""
+/* definiramo jezik - KONEC */
+#define MX_NS_L 1337
+/* angnum : size_t (število zapisanih bajtov, -1 ob propadu sveta)
+ * n: lluint: številka, ki naj jo zapišemo
+ * s: pointer to allocatanega spomina, kamor zapišemo string
+ * l: število bajtov allocatanega spomina za string, IZključno zadnjega '\0'
+ * alocirati morate vsaj en bajt več od l
+ * string bo mogoče avtomatsko null terminiran, vseeno ga raje dajte še sami */
+char * j_enice[] = { J_EMPTY, J_1, J_2, J_3, J_4, J_5, J_6, J_7, J_8, J_9, J_10, J_11, J_12, J_13, J_14, J_15, J_16, J_17, J_18, J_19, J_20 };
+char * j_power[] = { J_EMPTY, J_1k, J_1M, J_1G, J_1T };
+char * j_desetice[] = { J_EMPTY, J_10, J_20, J_30, J_40, J_50, J_60, J_70, J_80, J_90 };
+
+unsigned long long int na(unsigned long long int a, unsigned long long int b) {
+ unsigned long long int c = 1; /* jebeš math.h ke nima funkcije za intager */
+ for (; b > 0; b--) { /* potenciranje */
+ c = c * a;
+ }
+ return c;
+}
+
+size_t angnum (unsigned long long int n, char * s, int l) {
+ unsigned int i = 0; // Index Iteracij
+ int z = 0; // Zapisanih
+ if (n <= 20) { // "thirteen", namesto 0 je prazen string
+ z = snprintf(s, l, "%s", j_enice[n]);
+ fprintf(stderr, "z = %d, l = %d, s = %s, n = %llu\n", z, l, s, n);
+ return z;
+ }
+ if (n <= 99) { // && n > 20 // "forty-one" ali "thirty"
+ z = snprintf(s, l, "%s", j_desetice[n / 10]); // intdiv je floor
+ if (z < l && n % 10 != 0) s[z++] = '-';
+ return z + (n % 10 != 0 ? snprintf(s+z, l-z, "%s", j_enice[n % 10]) : 0);
+ }
+ if (n <= 999) { // && n > 99
+ z = snprintf(s, l, "%s ", j_enice[n/100]); // "one "
+ z = z + snprintf(s+z, l-z, "%s", J_1h); // "hundred"
+ if (n % 100 != 0) {
+ if (z < l) s[z++] = ' ';
+ z = z + snprintf(s+z, l-z, "%s ", J_AND); // "and "
+ return z + angnum(n-(n/100)*100, s+z, l-z);
+ } else {
+ return z;
+ }
+ } // sedaj je n > 99 && n < 1e21
+ for (i = 3; i <= 21; i=i+3) // sedaj iščemo največjo tisočico
+ if (n / na(10, i) <= 999) // zadnja tisočica
+ break;
+ z = angnum((n/na(10, i)), s, l-z); // "three hundred and forty-two"
+ fprintf(stderr, "-z = %d, l = %d, s = %s, n = %llu\n", z, l, s, n);
+ z = z + snprintf(s+z, l-z, " %s", j_power[i/3]); // "million"
+ fprintf(stderr, "xz = %d, l = %d, s = %s, n = %llu\n", z, l, s, n);
+ if (n-(n/na(i, 10)) > 0) {
+ fprintf(stderr, "pz = %d, l = %d, s = %s, n = %llu\n", z, l, s, n);
+ if (z < l) s[z++] = ' ';
+ if (z < l) s[z++] = 'a';
+ if (z < l) s[z++] = 'n';
+ if (z < l) s[z++] = 'd';
+ if (z < l) s[z++] = ' ';
+ fprintf(stderr, "qz = %d, l = %d, s = %s, n = %llu\n", z, l, s, n);
+ z = z + angnum(n-(n/na(10, i)*na(10, i)), s+z, l-z);
+ fprintf(stderr, "zz = %d, l = %d, s = %s, n = %llu\n", z, l, s, n);
+ }
+ return z;
+}
+int main (int argc, char ** argv) {
+ if (argc != 1+1) {
+ fprintf(stderr, "uporaba: %s <stevilka>\nprimer, ki napiše \"four hundred and twenty\": %s 420\n", argv[0], argv[0]);
+ return 1;
+ }
+ unsigned long long int n = strtoll(argv[1], NULL, 10);
+ char * s = malloc(sizeof(char)*MX_NS_L);
+ s[angnum(n, s, MX_NS_L-1)] = '\0';
+ fprintf(stdout, "%s\n", s);
+ return 0;
+}