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1030.cpp
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55 lines (39 loc) · 1.04 KB
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#include <bits/stdc++.h>
using namespace std;
int main(){
int nc, n, k, caso = 1;
cin >> nc;
while(nc--){
cin >> n >> k;
set<int> soldados;
for(int i = 1; i <= n; ++i)
soldados.insert(i);
int qtSoldados = n;
auto it = soldados.end();
--it;
int last = *it;
while(qtSoldados > 1){
int passo = 0;
auto it = soldados.find(last);
while(passo < k){
it++;
if(it == soldados.end())
it = soldados.begin();
passo++;
}
auto copy = it;
if(copy == soldados.begin()){
copy = soldados.end();
copy--;
}else
copy--;
last = *it;
soldados.erase(soldados.find(*it));
last = *copy;
qtSoldados--;
}
cout << "Case " << caso << ": " << *soldados.begin() << '\n';
caso++;
}
return 0;
}