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