10 files changed, 228 insertions, 0 deletions

diff --git a/inf/liga/.gitignore b/inf/liga/.gitignore
new file mode 100644
index 0000000..94ebaf9
--- /dev/null
+++ b/inf/liga/.gitignore
@@ -0,0 +1,4 @@
+1
+2
+3
+4
diff --git a/inf/liga/1.1.txt b/inf/liga/1.1.txt
new file mode 100644
index 0000000..87f4c7a
--- /dev/null
+++ b/inf/liga/1.1.txt
@@ -0,0 +1,5 @@
+10 30
+1
+-1
+-1
+0
diff --git a/inf/liga/1.2.txt b/inf/liga/1.2.txt
new file mode 100644
index 0000000..944b5a9
--- /dev/null
+++ b/inf/liga/1.2.txt
@@ -0,0 +1,4 @@
+10 30
+1
+-1
+0
diff --git a/inf/liga/1.3.txt b/inf/liga/1.3.txt
new file mode 100644
index 0000000..fb8c257
--- /dev/null
+++ b/inf/liga/1.3.txt
@@ -0,0 +1,8 @@
+10 30
+-1
+-1
+-1
+1
+1
+-1
+0
diff --git a/inf/liga/1.c b/inf/liga/1.c
new file mode 100644
index 0000000..955cd89
--- /dev/null
+++ b/inf/liga/1.c
@@ -0,0 +1,49 @@
+#include <stdio.h>
+#include <stdlib.h>
+#define M 512
+#define pedantic_fgets(a, b, c) if (!fgets(a, b, c)) { fprintf(stderr, "napaka pri vnosu\n"); return 1; }
+int main (void) {
+	char buf[M];
+	char * c;
+	int a, b, s;
+	pedantic_fgets(buf, M, stdin);
+	a = strtol(buf, &c, 10);
+	b = strtol(++c, NULL, 10);
+	if (a > b) {
+		s = a; /* swap */
+		a = b;
+		b = s;
+	}
+	fprintf(stderr, "interval: %05d %05d\n", a, b);
+	while (1) {
+		int v, u;
+		u = (a+b)/2; /* ugibamo to */
+		fprintf(stderr, "testiram %05d\n", u);
+		pedantic_fgets(buf, M, stdin);
+		if (!(v = strtol(buf, NULL, 10))) {
+			if ((b-a) <= 1)
+				goto ogabno;
+			fprintf(stdout, "%d %d\n", a, b);
+			return 0; /* da se CMS ne zmede */
+		}
+		if ((b-a) <= 1) { /* našli smo število */
+ogabno:
+			if (v)
+				fprintf(stdout, "PROTISLOVJE\n");
+			else
+				fprintf(stdout, "%d\n", u);
+			return 0;
+		}
+		if (v == -1) {
+			b = u;
+			b--;
+			fprintf(stderr, "-1: število je manjše od %05d, interval %05d %05d\n", u, a, b);
+		}
+		if (v == 1) {
+			a = u;
+			a++;
+			fprintf(stderr, " 1: število je večje  od %05d, interval %05d %05d\n", u, a, b);
+		}
+	}
+	return 0;
+}
diff --git a/inf/liga/2.1.txt b/inf/liga/2.1.txt
new file mode 100644
index 0000000..ed40cec
--- /dev/null
+++ b/inf/liga/2.1.txt
@@ -0,0 +1 @@
+10 20
diff --git a/inf/liga/2.c b/inf/liga/2.c
new file mode 100644
index 0000000..25ccbe5
--- /dev/null
+++ b/inf/liga/2.c
@@ -0,0 +1,118 @@
+#define _GNU_SOURCE
+#include <stdio.h>
+#include <stdlib.h>
+#include <math.h>
+#include <unistd.h>
+#include <string.h>
+#define M 512
+#define pedantic_fgets(a, b, c) if (!fgets(a, b, c)) { fprintf(stderr, "napaka pri vnosu\n"); return 1; }
+struct p {
+	long long int a;
+	long long int b;
+};
+int main (void) {
+	char buf[M];
+	char * cp;
+	long long int m, n, s, a, b, c;
+	m = n = s = a = b = c = 0; /* uh */
+	pedantic_fgets(buf, M, stdin);
+	m = strtoll(buf, &cp, 10);
+	if (!*++cp) return 1;
+	n = strtoll(cp, NULL, 10);
+	struct p * r = calloc(M, sizeof(struct p));
+	int u = 0;
+	fprintf(stderr, "interval je [%lld; %lld]\n", m, n);
+#if 0
+	for (a = 1; a <= n; a++)
+		for (b = 1; b <= n; b++)
+			for (c = 1; c <= n; c++) {
+				if (c >= m && c <= n && a*a+b*b == c*c) {
+					for (int i = 0; i < u; i++) {
+						if ((r[i].a == a && r[i].b == b)
+								|| (r[i].a == b && r[i].b == a)) {
+#ifndef EVAL
+							fprintf(stderr, "ogabno\n");
+#endif
+							goto ogabno;
+						}
+					}
+					r[u].a = a;
+					r[u++].b = b;
+#ifndef EVAL
+					fprintf(stderr, "%lld² + %lld² = %lld²\n", a, b, c);
+#endif
+					s++;
+ogabno:;
+				}
+			}
+	fprintf(stdout, "%lld\n", s);
+#endif
+#if 0
+	for (int a = 1; a <= n; a++)
+		for (int b = a+1; b <= n; b++) { /* a < b, b < c <= pravzaprav to sploh ni res*/
+			for (c = b+1; c*c < a*a+b*b; c++); /* koren je počasnejši */
+			if (c >= m && c <= n && a*a + b*b == c*c)
+				s++;
+		}
+#endif
+#if 0 /* eulerjeva metoda ne generira vseh trojic */
+	/*	a = x² - y²
+		b = 2xy
+		c = x²+y²	*/
+#define COND (c < 100)
+	for (int x = 2; COND; x++) {
+		for (int y = 1; y < x; y++) {
+			c = x*x+y*y;
+#ifndef EVAL
+			a = x*x-y*y;
+			b = 2*x*y;
+			fprintf(stderr, "%d²+%d²=%d² ", a, b, c);
+#endif
+			if (c >= m && c <= n) {
+#ifndef EVAL
+				fprintf(stderr, "ŠTEJEMO\n");
+#endif
+				s++;
+			}
+#ifndef EVAL
+			else {
+				fprintf(stderr, "NE ŠTEJEMO\n");
+			}
+#endif
+		}
+	}
+#endif
+#if 0
+	for (a = 1; a <= n; a++)
+		for (b = 1; b <= n; b++) {
+			double e = a*a+b*b;
+			double d = sqrt(e);
+#ifndef EVAL /* CMS compila z -DEVAL */
+			fprintf(stderr, "preverjam (%lld^2 + %lld^2 = %lf) = %lf^2\n", a, b, e, d);
+#endif
+			if ((int) d >= m && (int) d <= n && d == (int) d) {
+				for (int i = 0; i < u; i++) {
+					if ((r[i].a == a && r[i].b == b)
+							|| (r[i].a == b && r[i].b == a)) {
+#ifndef EVAL
+						fprintf(stderr, "ogabno\n");
+#endif
+						goto ogabno;
+					}
+				}
+				r[u].a = a;
+				r[u++].b = b;
+				s++;
+ogabno:;
+			}
+		}
+#endif
+	for (a = 1; a <= n; a++)
+		for (b = 1; b <= n; b++)
+			for (c = 1; c <= n; c++)
+				if (a*a+b*b=c*c) {
+					
+				}
+	fprintf(stdout, "%lld\n", s);
+	return 0;
+}
diff --git a/inf/liga/3.c b/inf/liga/3.c
new file mode 100644
index 0000000..9d370e6
--- /dev/null
+++ b/inf/liga/3.c
@@ -0,0 +1,19 @@
+#include <stdio.h>
+#include <stdlib.h>
+#define M 512
+#define pedantic_fgets(a, b, c) if (!fgets(a, b, c)) { fprintf(stderr, "napaka pri vnosu\n"); return 1; }
+int main (void) {
+	char buf[M];
+	char * c;
+	int n, k, r;
+	pedantic_fgets(buf, M, stdin);
+	n = strtol(buf, NULL, stdin);
+	pedantic_fgets(buf, M, stdin);
+	k = strtol(buf, NULL, stdin);
+	pedantic_fgets(buf, M, stdin);
+	r = strtol(buf, NULL, stdin);
+	while (fddgets(buf, M, stdin)) {
+		
+	}
+	return 0;
+}
diff --git a/inf/liga/Makefile b/inf/liga/Makefile
new file mode 100644
index 0000000..1dd50ea
--- /dev/null
+++ b/inf/liga/Makefile
@@ -0,0 +1,15 @@
+CFLAGS += -Wextra -Wall -pedantic -g -O0 -finput-charset=UTF-8 -fanalyzer -fextended-identifiers
+LDFLAGS += -lm
+CC ?= cc
+SHELL ?= /bin/sh
+cbins := $(subst .c,,$(wildcard *.c))
+asmbins := $(subst .asm,,$(wildcard *.asm))
+default: $(cbins) $(asmbins)
+%: %.c
+	$(CC) $(CFLAGS) $< -o$@ $(LDFLAGS)
+%: %.asm
+	# za zdaj sicer še ni ničesar v zbornem jeziku, mogoče pa bo ...
+	nasm -f elf $< && ld -m elf_i386 -s -o $@ $@.o
+.PHONY: clean
+clean:
+	rm -f $(bins) $(asmbins) *.o
diff --git a/inf/liga/test.c b/inf/liga/test.c
new file mode 100644
index 0000000..b412386
--- /dev/null
+++ b/inf/liga/test.c
@@ -0,0 +1,5 @@
+int main (void) {
+	int a = 123;
+	double b = 123.4;
+	return (b == a);
+}