From 831755fdc6d430bd8781da1897270cf2934bc858 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Gustav=20S=C3=B6rn=C3=A4s?= <gusso230@student.liu.se>
Date: Wed, 4 Dec 2019 07:02:31 +0100
Subject: Initial commit

---
 solutions/c/01-1.cpp |  8 ++++++++
 solutions/c/01-2.cpp | 14 ++++++++++++++
 solutions/c/02-1.cpp | 47 +++++++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 69 insertions(+)
 create mode 100644 solutions/c/01-1.cpp
 create mode 100644 solutions/c/01-2.cpp
 create mode 100644 solutions/c/02-1.cpp

(limited to 'solutions/c')

diff --git a/solutions/c/01-1.cpp b/solutions/c/01-1.cpp
new file mode 100644
index 0000000..fcb593a
--- /dev/null
+++ b/solutions/c/01-1.cpp
@@ -0,0 +1,8 @@
+#include<iostream>
+
+int main() {
+	int mass, sum = 0;
+	while (std::cin >> mass) sum += (mass / 3) - 2;
+	std::cout << sum << std::endl;
+}
+
diff --git a/solutions/c/01-2.cpp b/solutions/c/01-2.cpp
new file mode 100644
index 0000000..7ce1a82
--- /dev/null
+++ b/solutions/c/01-2.cpp
@@ -0,0 +1,14 @@
+#include<iostream>
+
+int getFuel(int mass) {
+	int fuel = (mass / 3) - 2;
+	if (fuel <= 0) return 0;
+	return fuel + getFuel(fuel);
+}
+
+int main() {
+	int mass, sum = 0;
+	while (std::cin >> mass) sum += getFuel(mass);
+	std::cout << sum << std::endl;
+}
+
diff --git a/solutions/c/02-1.cpp b/solutions/c/02-1.cpp
new file mode 100644
index 0000000..b6db056
--- /dev/null
+++ b/solutions/c/02-1.cpp
@@ -0,0 +1,47 @@
+#include<fstream>
+#include<iostream>
+#include<vector>
+using namespace std;
+
+int main() {
+	ifstream inFile;
+	inFile.open("02.in");
+
+	vector<int> program;
+	int noun, verb;
+	// enter noun, verb
+	cin >> noun;
+	cin >> verb;
+	
+	// read program
+	int n;
+	while (inFile >> n) program.push_back(n);
+	program[1] = noun;
+	program[2] = verb;
+	//cout << "Program: " << endl;
+	//dump(program);
+
+	// copy program to mem
+	vector<int> mem(program);
+
+	// calculate
+	int pointer = 0;
+	int op;
+	do {
+		//cout << "Pointer: " << pointer << endl;
+		//cout << "Memory: " << endl;
+		//dump(mem);
+		op = mem[pointer];
+		switch (op) {
+			case 1:
+				mem[mem[pointer+3]] = mem[mem[pointer+1]] + mem[mem[pointer+2]];
+				pointer += 4;
+				break;
+			case 2:
+				mem[mem[pointer+3]] = mem[mem[pointer+1]] * mem[mem[pointer+2]];
+				pointer += 4;
+				break;
+		}
+	} while (mem[pointer] != 99);
+	cout << mem[0] << endl;
+}
-- 
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