school/cs235/lab02/Student_Code/circle.cpp
2016-04-06 20:46:10 -07:00

89 lines
2.1 KiB
C++

#include <vector>
#include "circle.h"
ostream & operator<<(ostream & os, vector<string> strings) {
for(unsigned int i = 0; i < strings.size(); i++)
os << strings[i] << ", ";
os << endl;
return os;
}
vector<string> circle::getNames() {
vector<string> names;
names.push_back("Josephus");
names.push_back("A");
names.push_back("B");
names.push_back("C");
names.push_back("D");
names.push_back("E");
names.push_back("F");
names.push_back("G");
names.push_back("H");
names.push_back("I");
names.push_back("J");
names.push_back("K");
names.push_back("L");
names.push_back("M");
names.push_back("N");
names.push_back("O");
names.push_back("P");
names.push_back("Q");
names.push_back("R");
names.push_back("S");
return names;
}
vector<string> circle::playGame(int n, int m) {
vector<string> names = getNames();
vector<string> temp;
if(n < 10 || n > 20){
names.clear();
return names;
}
if(m < 1){
names.clear();
return names;
}
for(int i = 0; i < 20 - n; i++) {
names.pop_back();
}
unsigned int count = 0;
for(int i = 0; i < n; i++) {
int hits = 0;
while(hits < m) {
if(names[count] == ""){
}
else {
hits++;
if(hits == m) {
temp.push_back(names[count]);
names[count] = "";
hits = 100;
}
}
count++;
if(count+1 > names.size()) {
count = 0;
}
}
}
return temp;
}
int circle::reportSafeIndex(int n, int m) {
if(m < 1) {
return -1;
}
else if (n < 10 || n > 20){
return -1;
}
vector<string> names = getNames();
vector<string> kill_list = playGame(n, m);
string safe_person_name = kill_list[kill_list.size() - 1];
for(unsigned int i = 0; i < names.size(); i++) {
if(safe_person_name == names[i]) {
return i;
}
}
return -1;
}