11 files changed, 234 insertions, 0 deletions
diff --git a/bio/1/1 b/bio/1/1
new file mode 100755
index 0000000..612a0ae
--- /dev/null
+++ b/bio/1/1
diff --git a/bio/1/1.c b/bio/1/1.c
new file mode 100644
index 0000000..d086119
--- /dev/null
+++ b/bio/1/1.c
@@ -0,0 +1,179 @@
+#include <stdio.h>
+#include <assert.h>
+#include <string.h>
+#include <stdbool.h>
+#include <stdlib.h>
+
+char *reverse(char *s){
+	char *rev = malloc(strlen(s));
+	int j = 0;
+	for (int i = strlen(s)-1; i >= 0; i--){
+		rev[j] = s[i];
+		j++;
+	}
+	rev[j] = 0;
+
+	return rev;
+}
+
+bool ispal(int n){
+	char *strnum = malloc(128);
+	snprintf(strnum, 128, "%d", n);
+	char *rev = reverse(strnum);
+
+	if (strcmp(rev, strnum) == 0) { // is the same both ways round
+		free(strnum);
+		free(rev);
+		return true;
+	}
+	free(strnum);
+	free(rev);
+	return false;
+}
+
+int findhighestsumof2(int sums[][2], int sumcount){
+	int highest = sums[0][0];
+	int highestIndex = 0;
+
+	for (int i = 0; i < sumcount; i++) {
+		if (sums[i][0] > highest) {
+			highest= sums[i][0];
+			highestIndex = i;
+		}
+		if (sums[i][1] > highest) {
+			highest = sums[i][1];
+			highestIndex = i;
+		} 
+	}	
+
+	return highestIndex;
+}
+
+int findlowesetsumof2(int sums[][2], int sumcount){
+	if (sumcount == 0) return -1; // no sums
+	int lowest = sums[0][0];
+	int lowestIndex = 0;
+	bool needscheck = false;
+
+	for (int i = 0; i < sumcount; i++) {
+		if (sums[i][0] < lowest) {
+			lowest = sums[i][0];
+			lowestIndex = i;
+			needscheck = false;
+		}
+		if (sums[i][1] < lowest) {
+			lowest = sums[i][1];
+			lowestIndex = i;
+			needscheck = false;
+		} 
+		if (sums[i][0] == lowest || sums[i][1] == lowest) needscheck == true;
+	}
+	if (needscheck) return findhighestsumof2(sums, sumcount);
+	return lowestIndex;
+}
+
+int findhighestsumof3(int sums[][3], int sumcount){
+	int highest = sums[0][0];
+	int highestIndex = 0;
+
+	for (int i = 0; i < sumcount; i++) {
+		if (sums[i][0] > highest) {
+			highest= sums[i][0];
+			highestIndex = i;
+		}
+		if (sums[i][1] > highest) {
+			highest = sums[i][1];
+			highestIndex = i;
+		} 
+		if (sums[i][2] > highest) {
+			highest = sums[i][2];
+			highestIndex = i;
+		} 
+	}	
+	return highestIndex;
+}
+
+int findlowesetsumof3(int sums[][3], int sumcount){
+	if (sumcount == 0) return -1; // no sums
+				      //
+	int lowest = sums[0][0];
+	int lowestIndex = 0;
+	bool needscheck = false;
+
+	for (int i = 0; i < sumcount; i++) {
+		if (sums[i][0] < lowest) {
+			lowest = sums[i][0];
+			lowestIndex = i;
+			needscheck = false;
+		}
+		if (sums[i][1] < lowest) {
+			lowest = sums[i][1];
+			lowestIndex = i;
+			needscheck = false;
+		} 
+		if (sums[i][2] < lowest) {
+			lowest = sums[i][2];
+			lowestIndex = i;
+			needscheck = false;
+		}
+		if (sums[i][0] == lowest || sums[i][1] == lowest || sums[i][0] == lowest) needscheck == true;
+	}
+	if (needscheck) return findhighestsumof3(sums, sumcount);
+	return lowestIndex;
+}
+
+
+int main(int argc, char **argv){
+	int input;
+	if (argc == 1) {
+		assert(scanf("%d", &input) != 0);
+	} else input = atoi(argv[1]);
+
+	if (ispal(input)) { // if 1 number is enough
+		printf("%d\n", input);
+		return 1;
+	}
+
+	int sums[input*2][2];
+	int sumcount = 0;
+	for (int i = 1; i < input/2+1; i++){ // if 2 is enough
+		for (int j = input; j > (input/2) - 1; j--){
+			if ((i + j) == input) {
+				if (ispal(i) & ispal(j)){
+					sums[sumcount][0] = i;
+					sums[sumcount][1] = j;
+					sumcount++;
+				}
+			}
+		}
+	}
+
+	int index = findlowesetsumof2(sums, sumcount);
+	if (index != -1) {
+		printf("%d %d\n", sums[index][0], sums[index][1]);
+		return 2;
+	}
+	
+	int triples[input*3][3];
+	int triplecount = 0;
+	for (int i = 0; i < input; i++){ // if 3 is enough
+		for (int j = 0; j < input; j++){ 
+			for (int k = 0; k < input; k++){
+				if ((i + j + k) == input) {
+					if (ispal(i) & ispal(j) & ispal(k)){
+						triples[triplecount][0] = i;
+						triples[triplecount][1] = j;
+						triples[triplecount][2] = k;
+						triplecount++;
+					}
+				}
+			}
+		}
+	}
+
+	index = findlowesetsumof3(triples, triplecount);
+	if (index != -1) {
+		printf("%d %d %d\n", triples[index][0], triples[index][1], triples[index][2]);
+		return 3;
+	}
+}
diff --git a/bio/1/1.c.sh b/bio/1/1.c.sh
new file mode 100644
index 0000000..e05be5a
--- /dev/null
+++ b/bio/1/1.c.sh
@@ -0,0 +1,5 @@
+for i in $(./loopstr 1000000)
+do 
+	if [ $(./1 $i | grep -o "[0-9] " | wc -l) == "2" ]; then echo hit; fi
+	echo $i > ./count
+done
diff --git a/bio/1/1.txt b/bio/1/1.txt
new file mode 100644
index 0000000..2bec6cd
--- /dev/null
+++ b/bio/1/1.txt
@@ -0,0 +1,5 @@
+1)a) see sourcecode
+1)b) 1 9 44
+1)c) ...
+
+
diff --git a/bio/1/Makefile b/bio/1/Makefile
new file mode 100644
index 0000000..7ba1ac5
--- /dev/null
+++ b/bio/1/Makefile
@@ -0,0 +1,4 @@
+all: 1.c
+	cc 1.c -o 1 -ggdb
+clean:
+	rm 1
diff --git a/bio/1/count b/bio/1/count
new file mode 100644
index 0000000..113c4d2
--- /dev/null
+++ b/bio/1/count
@@ -0,0 +1 @@
+1093
diff --git a/bio/1/loopstr b/bio/1/loopstr
new file mode 100755
index 0000000..94ee2f9
--- /dev/null
+++ b/bio/1/loopstr
diff --git a/bio/1/loopstr.c b/bio/1/loopstr.c
new file mode 100644
index 0000000..8319c19
--- /dev/null
+++ b/bio/1/loopstr.c
@@ -0,0 +1,9 @@
+#include <stdio.h>
+#include <stdlib.h>
+
+int main(int argc, char **argv) {
+	for (int i = 0; i < atoi(argv[1]); i++){
+		printf("%d ", i);
+	}
+	printf("\n");
+}
diff --git a/bio/3/3 b/bio/3/3
new file mode 100755
index 0000000..83cc1c2
--- /dev/null
+++ b/bio/3/3
diff --git a/bio/3/3.c b/bio/3/3.c
new file mode 100644
index 0000000..3ecb08d
--- /dev/null
+++ b/bio/3/3.c
@@ -0,0 +1,27 @@
+#include <stdio.h>
+
+int main() {
+	int fusecount;
+	scanf("%d", &fusecount);
+	int fuses[fusecount];
+	
+	for (int i = 0; i < fusecount; i++) 
+		scanf("%d", &fuses[i]);
+	
+	float burntimes[fusecount * 3];
+	int counter = 0;
+	for (int i = 0; i < fusecount; i++) {
+		for (int j = 0; j < 3; j++) { // for each state, (dont light, light, light both ends)
+			if (j == 0) burntimes[counter] = 0;
+			else if (j == 1) burntimes[counter] = fuses[i];
+			else if (j == 2) burntimes[counter] = (float)fuses[i] / 2.0;
+			counter++;
+		}
+	}
+
+	for (int i = 0; i < counter/2; i++) {
+		for (int j = counter-1; j > counter/2; j--){
+			printf("%f %f\n", burntimes[i], burntimes[j]);
+		}
+	}
+}
diff --git a/bio/3/Makefile b/bio/3/Makefile
new file mode 100644
index 0000000..6dc3b82
--- /dev/null
+++ b/bio/3/Makefile
@@ -0,0 +1,4 @@
+all: 3.c
+	cc 3.c -o 3 -ggdb
+clean:
+	rm 3