#include <bits/stdc++.h>
using namespace std;
using ll = long long;
using pii = pair<int, int>;
using vi = vector<int>;
namespace utils{
constexpr bool use_stdio = false;
ostream* out = &cout;
FILE* stdio_out = stdout;
const bool __ = [](){ if constexpr(!use_stdio){ ios_base::sync_with_stdio(false); cin.tie(nullptr);
cout << fixed; cout << setprecision(12); cerr << fixed; cerr << setprecision(12); } return true; }();
template<typename ...> using to_void = void;
template<typename T, typename = void> struct is_container : false_type {};
template<typename T> struct is_container<T, to_void<decltype(declval<T>().begin()), decltype(declval<T>().end())>> : true_type {};
inline void rd(int& x) { if constexpr(use_stdio) scanf("%d", &x); else cin >> x; }
inline void rd(long long& x) { if constexpr(use_stdio) scanf("%lld", &x); else cin >> x; }
inline void rd(double& x) { if constexpr(use_stdio) scanf("%lf", &x); else cin >> x; }
inline void rd(long double& x) { if constexpr(use_stdio){ double y; scanf("%lf", &y); x=y; } else cin >> x; }
inline void rd(char& x) { if constexpr(use_stdio) scanf(" %c", &x); else cin >> x; }
inline void rd(char* x) { if constexpr(use_stdio) scanf("%s", x); else cin >> x; }
inline void rd(string& x) { if constexpr(use_stdio) assert(false); else cin >> x; }
template<typename T, typename enable_if<!use_stdio && is_integral<T>::value>::type* = nullptr> inline void rd(T& x) { cin >> x; }
template<typename T> inline void rd(T* x);
template<typename T, typename enable_if<is_container<T>::value>::type* = nullptr> inline void rd(T& x);
template<typename... Ts> inline void rd(tuple<Ts...>& x);
template<typename T, typename U> inline void rd(pair<T, U>& x) { rd(x.first); rd(x.second); }
template<typename T, typename enable_if<is_container<T>::value>::type* = nullptr> inline void rd(T& x) { for(auto& v : x) rd(v); }
template<typename T, typename U, typename... Ts> inline void rd(T&& t, U&& u, Ts&&... ts) {
rd(forward<T>(t)); rd(forward<U>(u), forward<Ts>(ts)...); }
template<typename... Ts> inline void rd(tuple<Ts...>& x) { static_assert(sizeof...(Ts) > 0);
constexpr auto apply_rd = [](auto&&... xs) { rd(xs...); }; apply(apply_rd, x); }
template<typename T> inline void rd(T* x) { rd(*x); }
inline void prt(const int& x) { if constexpr(use_stdio) fprintf(stdio_out, "%d", x); else *out << x; }
inline void prt(const long long& x) { if constexpr(use_stdio) fprintf(stdio_out, "%lld", x); else *out << x; }
inline void prt(const double& x) { if constexpr(use_stdio) fprintf(stdio_out, "%.12f", x); else *out << x; }
inline void prt(const long double& x) { if constexpr(use_stdio) fprintf(stdio_out, "%.12f", (double)x); else *out << x; }
inline void prt(const char& x) { if constexpr(use_stdio) fprintf(stdio_out, "%c", x); else *out << x; }
inline void prt(const char* x) { if constexpr(use_stdio) fprintf(stdio_out, "%s", x); else *out << x; }
inline void prt(const string &x) { if constexpr(use_stdio) fprintf(stdio_out, "%s", x.c_str()); else *out << x; }
template<typename T, typename enable_if<!use_stdio && is_integral<T>::value>::type* = nullptr> inline void prt(const T& x) { *out << x; }
template<typename T, typename enable_if<is_container<T>::value>::type* = nullptr> inline void prt(const T& x);
template<typename... Ts> inline void prt(const tuple<Ts...>& x);
template<typename T, typename U> inline void prt(const pair<T, U>& x) { prt(x.first); prt(' '); prt(x.second); }
template<typename T, typename enable_if<is_container<T>::value>::type* = nullptr> inline void prt(const T& x) {
if (x.begin() != x.end()) { prt(*x.begin()); for(auto it = x.begin(); ++it != x.end(); ) { prt(' '); prt(*it); } } }
template<typename T, typename U, typename... Ts> inline void prt(T&& t, U&& u, Ts&&... ts) {
prt(forward<T>(t)); prt(' '); prt(forward<U>(u), forward<Ts>(ts)...); }
template<typename... Ts> inline void prt(const tuple<Ts...>& x ) { static_assert(sizeof...(Ts) > 0);
constexpr auto apply_prt = [](auto&&... xs) { prt(xs...); }; apply(apply_prt, x); }
inline void wt() { prt('\n'); }
template<typename... Ts> inline void wt(Ts&&... ts) { prt(forward<Ts>(ts)...); wt(); }
#ifdef MY_DEBUG_FLAG
inline void enter_db() { if constexpr(use_stdio) stdio_out = stderr; else out = &cerr; }
inline void leave_db() { if constexpr(use_stdio) stdio_out = stdout; else out = &cout; }
inline void db() { enter_db(); prt('\n'); leave_db(); }
template<typename... Ts> inline void db(Ts&&... ts) { enter_db(); prt(forward<Ts>(ts)...); wt(); leave_db(); }
#define db(...) utils::db("Debug(", #__VA_ARGS__, ") == (", __VA_ARGS__, ")")
#else
#define db(...)
#endif // define(MY_DEBUG_FLAG)
constexpr int slen(char*s){ return (int) strlen(s); }
template<typename T, typename U, typename enable_if<is_container<T>::value>::type* = nullptr> inline T& resize(T& x, U n) {
x.resize(n); return x; }
void flush() { if constexpr(use_stdio) fflush(stdout); else cout << std::flush; }
} using utils::rd, utils::prt, utils::wt, utils::slen, utils::resize, utils::flush;
#define pb emplace_back
#define ff first
#define ss second
#define sz(a) ((int)(a).size())
#define rep(i,a,b) for(int i=(a); i<(b); i++)
#define dec(i,n,a) for(int i=(n); i>=(a); i--)
#define clr(a,v) memset(a, v, sizeof(a))
#define all(a) (a).begin(),(a).end()
constexpr int inf = 0x3f3f3f3f;
constexpr int MAXN = 2e5 + 10;
constexpr int LOGN = 20;
constexpr int mod = 1000000007;
int tree[4*MAXN];
void build(int node, int i, int j) {
if(i == j) {
tree[node] = inf;
return;
}
int m = (i+j) >> 1;
build(2*node, i, m);
build(2*node+1, m+1, j);
tree[node] = inf;
}
void update(int node, int i, int j, int pos, int val) {
if(i == j) {
tree[node] = val;
return;
}
int m = (i+j) >> 1;
if(pos <= m) update(2*node, i, m, pos, val);
else update(2*node+1, m+1, j, pos, val);
tree[node] = min(tree[2*node], tree[2*node+1]);
}
int query(int node, int i, int j, int l, int val) {
if(j < l) return inf;
if(tree[node] > val) return inf;
if(i == j) return i;
int m = (i+j) >> 1;
int p1 = query(2*node, i, m, l, val);
if(p1 == inf) return query(2*node+1, m+1, j, l, val);
else return p1;
}
int main() {
int n, q;
rd(n, q);
build(1,1,n);
while(q--) {
char t;
int a, b;
rd(t, a, b);
if(t == 'M') {
update(1, 1, n, b, a);
}
else {
int ans = query(1, 1, n, b, a);
wt(ans==inf?-1:ans);
}
}
}
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
5 ms |
384 KB |
Output is correct |
| 2 |
Correct |
5 ms |
384 KB |
Output is correct |
| 3 |
Correct |
6 ms |
384 KB |
Output is correct |
| 4 |
Correct |
98 ms |
6904 KB |
Output is correct |
| 5 |
Correct |
99 ms |
2168 KB |
Output is correct |
| 6 |
Correct |
108 ms |
6704 KB |
Output is correct |
| 7 |
Correct |
113 ms |
6776 KB |
Output is correct |
