#ifdef ONLINE_JUDGE
#pragma GCC optimize("Ofast,no-stack-protector,unroll-loops,fast-math,O3")
#pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,tune=native")
#endif
#include <bits/stdc++.h>
#define speed \
ios_base::sync_with_stdio(0); \
cin.tie(0); \
cout.tie(0);
#define precision \
cout.precision(30); \
cerr.precision(10);
#define ll long long
#define ld long double
#define pb(x) push_back(x)
#define sz(x) (int)x.size()
#define mp(x, y) make_pair(x, y)
#define all(x) x.begin(), x.end()
#define pc(x) __builtin_popcount(x)
#define pcll(x) __builtin_popcountll(x)
#define F first
#define S second
using namespace std;
mt19937_64 rng(chrono::steady_clock::now().time_since_epoch().count());
void ioi(string name) {
freopen((name + ".in").c_str(), "r", stdin);
freopen((name + ".out").c_str(), "w", stdout);
}
int q;
vector<int> a, b;
int get() {
sort(all(a));
sort(all(b));
reverse(all(a));
reverse(all(b));
int x = 1, y = 1;
for (int i = 0; i < min(sz(a), sz(b)); i++) {
x &= (a[i] >= b[i]);
y &= (b[i] >= a[i]);
}
if (!x && !y) return -1;
if (x && y) {
if (sz(a) > sz(b))
x = 1;
else
x = 0;
return x;
}
if (x && sz(a) != max(sz(a), sz(b))) return -1;
if (y && sz(b) != max(sz(a), sz(b))) return -1;
return x;
}
int main() {
speed;
precision;
// code
cin >> q;
while (q--) {
int x, y;
cin >> x >> y;
if (y < 2)
a.pb(x);
else
b.pb(x);
x = get();
if (x < 0)
cout << "?\n";
else
cout << (!x ? "<\n" : ">\n");
}
// endl
#ifndef ONLINE_JUDGE
cerr << "\nTime elapsed: " << 1.0 * clock() / CLOCKS_PER_SEC << " s.\n";
#endif
return 0;
}
Compilation message
stones.cpp: In function 'void ioi(std::string)':
stones.cpp:26:10: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
26 | freopen((name + ".in").c_str(), "r", stdin);
| ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
stones.cpp:27:10: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
27 | freopen((name + ".out").c_str(), "w", stdout);
| ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
204 KB |
Output is correct |
| 2 |
Correct |
1 ms |
316 KB |
Output is correct |
| 3 |
Correct |
1 ms |
312 KB |
Output is correct |
| 4 |
Correct |
1 ms |
204 KB |
Output is correct |
| 5 |
Correct |
2 ms |
204 KB |
Output is correct |
| 6 |
Correct |
3 ms |
316 KB |
Output is correct |
| 7 |
Correct |
8 ms |
332 KB |
Output is correct |
| 8 |
Correct |
13 ms |
332 KB |
Output is correct |
| 9 |
Correct |
10 ms |
324 KB |
Output is correct |
| 10 |
Correct |
905 ms |
512 KB |
Output is correct |
| 11 |
Execution timed out |
1093 ms |
616 KB |
Time limit exceeded |
| 12 |
Halted |
0 ms |
0 KB |
- |
