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D.cpp
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101 lines (91 loc) · 2.17 KB
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#include <bits/stdc++.h>
#define int long long
#define FOR(i, a, b) for (int i = (a), _b = (b); i <= _b; ++i)
#define FORD(i, a, b) for (int i = (a), _b = (b); i >= _b; --i)
#define REP(i, a) for (int i = 0, _a = (a); i < _a; ++i)
#define DEBUG(X) \
{ cout << #X << " = " << (X) << endl; }
#define PR(A, n) \
{ \
cout << #A << " = "; \
FOR(_, 1, n) cout << A[_] << ' '; \
cout << endl; \
}
#define PR0(A, n) \
{ \
cout << #A << " = "; \
REP(_, n) cout << A[_] << ' '; \
cout << endl; \
}
#define sqr(x) ((x) * (x))
#define ll long long
#define __builtin_popcount __builtin_popcountll
#define SZ(x) ((int)(x).size())
using namespace std;
double safe_sqrt(double x) { return sqrt(max((double)0.0, x)); }
int GI(ll& x) { return scanf("%lld", &x); }
int solve(int k, int a, int b) {
// First, we simulate the tournament until 1 player left in each half
int winners = 1 << k;
int losers = 0;
int is_winner = 1;
int round = 0;
while (winners > 1 || losers > 1) {
round += 1;
// winner group
int drop = winners / 2;
int just_failed = 0;
if (is_winner) {
if (!a) {
is_winner = 0;
just_failed = 1;
} else
--a;
}
// loser group
if (!is_winner && !just_failed) {
if (!b) {
return winners + losers / 2 + 1;
} else {
--b;
}
}
losers /= 2;
assert(losers == drop || losers == 0);
losers += drop;
winners -= drop;
if (round > 1) {
if (!is_winner) {
if (!b) {
return winners + losers / 2 + 1;
} else {
--b;
}
}
losers /= 2;
}
}
if (is_winner) {
if (a + b) return 1;
return 2;
} else {
if (a + b == 2)
return 1;
else
return 2;
}
}
#undef int
int main() {
#define int long long
ios::sync_with_stdio(0);
cin.tie(0);
cout << (fixed) << setprecision(9);
int ntest;
cin >> ntest;
while (ntest--) {
int k, a, b;
cin >> k >> a >> b;
cout << solve(k, a, b) << '\n';
}
}