QOJ.ac
QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#510165 | #8258. Gift Exchange | green_gold_dog | Compile Error | / | / | C++20 | 1.8kb | 2024-08-08 21:42:51 | 2024-08-08 21:42:52 |
Judging History
answer
//#pragma GCC optimize("Ofast")
//#pragma GCC target("avx,avx2,sse,sse2,sse3,ssse3,sse4,abm,popcnt,mmx")
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef double db;
typedef long double ldb;
typedef complex<double> cd;
constexpr ll INF64 = 9'000'000'000'000'000'000, INF32 = 2'000'000'000, MOD = 1'000'000'007;
constexpr db PI = acos(-1);
constexpr bool IS_FILE = false, IS_TEST_CASES = false;
random_device rd;
mt19937 rnd32(rd());
mt19937_64 rnd64(rd());
template<typename T>
bool assign_max(T& a, T b) {
if (b > a) {
a = b;
return true;
}
return false;
}
template<typename T>
bool assign_min(T& a, T b) {
if (b < a) {
a = b;
return true;
}
return false;
}
template<typename T>
T square(T a) {
return a * a;
}
template<>
struct std::hash<pair<ll, ll>> {
ll operator() (pair<ll, ll> p) const {
return ((__int128)p.first * MOD + p.second) % INF64;
}
};
void solve() {
ll n;
cin >> n;
vector<ll> a(n), b(n);
for (ll i = 0; i < n; i++) {
cin >> a[i];
}
for (ll i = 0; i < n; i++) {
cin >> b[i];
}
set<ll> bad;
for (ll i = 1; i + 1 < n; i++) {
if (a[i - 1] < b[i] && a[i] < b[i + 1]) {
bad.insert(i + 1);
}
}
ll q;
cin >> q;
for (ll i = 0; i < q; i++) {
ll l, r;
cin >> l >> r;
l--;
vector<ll> na, nb;
for (ll i = l; i < r; i++) {
na.push_back(a[i]);
nb.push_back(b[i]);
}
bool b = true;
for (auto[_, x] : all) {
ns += x;
if (x > 0) {
continue;
}
if (ns == 0) {
if (!b2) {
b = false;
break;
}
b2 = false;
} else {
b2 = true;
}
}
cout << (b ? "Yes" : "No") << '\n';
}
}
int main() {
if (IS_FILE) {
freopen("", "r", stdin);
freopen("", "w", stdout);
}
ios_base::sync_with_stdio(false);
cin.tie(0);
cout.tie(0);
ll t = 1;
if (IS_TEST_CASES) {
cin >> t;
}
for (ll i = 0; i < t; i++) {
solve();
}
}
Details
answer.code: In function ‘void solve()’: answer.code:78:35: error: ‘all’ was not declared in this scope 78 | for (auto[_, x] : all) { | ^~~ answer.code:78:35: note: suggested alternatives: In file included from /usr/include/c++/13/filesystem:48, from /usr/include/x86_64-linux-gnu/c++/13/bits/stdc++.h:200, from answer.code:3: /usr/include/c++/13/bits/fs_fwd.h:154:7: note: ‘std::filesystem::perms::all’ 154 | all = 0777, | ^~~ In file included from /usr/include/x86_64-linux-gnu/c++/13/bits/stdc++.h:89: /usr/include/c++/13/ranges:1308:27: note: ‘std::ranges::views::all’ 1308 | inline constexpr _All all; | ^~~ answer.code:79:25: error: ‘ns’ was not declared in this scope; did you mean ‘nb’? 79 | ns += x; | ^~ | nb answer.code:84:38: error: ‘b2’ was not declared in this scope; did you mean ‘b’? 84 | if (!b2) { | ^~ | b answer.code:88:33: error: ‘b2’ was not declared in this scope; did you mean ‘b’? 88 | b2 = false; | ^~ | b answer.code:90:33: error: ‘b2’ was not declared in this scope; did you mean ‘b’? 90 | b2 = true; | ^~ | b answer.code: In function ‘int main()’: answer.code:99:24: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’ declared with attribute ‘warn_unused_result’ [-Wunused-result] 99 | freopen("", "r", stdin); | ~~~~~~~^~~~~~~~~~~~~~~~ answer.code:100:24: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’ declared with attribute ‘warn_unused_result’ [-Wunused-result] 100 | freopen("", "w", stdout); | ~~~~~~~^~~~~~~~~~~~~~~~~