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-rw-r--r--19/cpp/02-2.cpp66
1 files changed, 66 insertions, 0 deletions
diff --git a/19/cpp/02-2.cpp b/19/cpp/02-2.cpp
new file mode 100644
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--- /dev/null
+++ b/19/cpp/02-2.cpp
@@ -0,0 +1,66 @@
+#include<fstream>
+#include<iostream>
+#include<vector>
+#include <chrono>
+using namespace std;
+
+int run(vector<int> prog, int noun, int verb, int pointer, int op) {
+ vector<int> mem(prog);
+ mem[1] = noun;
+ mem[2] = verb;
+
+ // calculate
+ pointer = 0;
+ 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);
+ return mem[0];
+}
+
+int main() {
+ ifstream inFile;
+ inFile.open("02.in");
+
+ vector<int> program;
+ int noun, verb;
+ int pointer;
+ int op;
+
+ // read program
+ int n;
+ while (inFile >> n) program.push_back(n);
+ //cout << "Program: " << endl;
+ //dump(program);
+
+ int res;
+
+ auto t1 = chrono::high_resolution_clock::now();
+
+ for (int n = 0; n < 100; n++) {
+ for (int v = 0; v < 100; v++) {
+ res = run(program, n, v, pointer, op);
+ //cout << n << " " << v << " " << res << endl;
+ if (res == 19690720) {
+ cout << n << " " << v << endl;
+ auto t2 = chrono::high_resolution_clock::now();
+ auto duration = chrono::duration_cast<std::chrono::microseconds>( t2 - t1 ).count();
+ cout << duration << endl;
+ return 0;
+ }
+ }
+ }
+ return 1;
+}