結果
問題 | No.2992 Range ABCD String Query |
ユーザー |
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提出日時 | 2024-12-17 00:08:24 |
言語 | C++23 (gcc 13.3.0 + boost 1.87.0) |
結果 |
AC
|
実行時間 | 354 ms / 6,000 ms |
コード長 | 3,235 bytes |
コンパイル時間 | 3,652 ms |
コンパイル使用メモリ | 281,072 KB |
実行使用メモリ | 48,848 KB |
最終ジャッジ日時 | 2024-12-17 00:08:40 |
合計ジャッジ時間 | 16,017 ms |
ジャッジサーバーID (参考情報) |
judge2 / judge1 |
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ファイルパターン | 結果 |
---|---|
other | AC * 41 |
ソースコード
#include<bits/stdc++.h>namespace {#pragma GCC diagnostic ignored "-Wunused-function"#include<atcoder/all>#pragma GCC diagnostic warning "-Wunused-function"using namespace std;using namespace atcoder;#define rep(i,n) for(int i = 0; i < (int)(n); i++)#define rrep(i,n) for(int i = (int)(n) - 1; i >= 0; i--)#define all(x) begin(x), end(x)#define rall(x) rbegin(x), rend(x)template<class T> bool chmax(T& a, const T& b) { if (a < b) { a = b; return true; } else return false; }template<class T> bool chmin(T& a, const T& b) { if (b < a) { a = b; return true; } else return false; }using ll = long long;using P = pair<int,int>;using VI = vector<int>;using VVI = vector<VI>;using VL = vector<ll>;using VVL = vector<VL>;template<class T, T (*add)(T, T), T (*zero)(), T (*mul)(T, T), T (*one)(), int N>struct Mat : array<array<T, N>, N> {using M = Mat<T, add, zero, mul, one, N>;void make_identity() {for (int i = 0; i < N; i++) {for (int j = 0; j < N; j++) {(*this)[i][j] = zero();}}for (int i = 0; i < N; i++) {(*this)[i][i] = one();}}M& operator+=(const M& rhs) {for (int i = 0; i < N; i++) {for (int j = 0; j < N; j++) {(*this)[i][j] = add((*this)[i][j], rhs[i][j]);}}return *this;}M& operator*=(const M& rhs) {static M temp;for (int i = 0; i < N; i++) {for (int j = 0; j < N; j++) {temp[i][j] = zero();}}for (int i = 0; i < N; i++) {for (int j = 0; j < N; j++) {for (int k = 0; k < N; k++) {temp[i][k] = add(temp[i][k], mul((*this)[i][j], rhs[j][k]));}}}*this = temp;return *this;}template <class I>void inplace_pow(I k) {assert(k >= 0);static M temp;temp = *this;make_identity();while (k) {if (k & 1) *this *= temp;k >>= 1;if (k) temp *= temp;}}friend ostream& operator<<(ostream& os, const M& A) {for (int i = 0; i < N; i++) {for (int j = 0; j < N; j++) {os << A[i][j] << " \n"[j + 1 == N];}}return os;}};constexpr int INF = 1001001001;int add(int x, int y) { return min(x, y); }int zero() { return INF; }int mul(int x, int y) { return x + y; }int one() { return 0; }using M = Mat<int, add, zero, mul, one, 4>;M e() {M res;res.make_identity();return res;}M op(M a, M b) {M c = a;c *= b;return c;}} int main() {ios::sync_with_stdio(false);cin.tie(0);int n, q;cin >> n >> q;string s;cin >> s;vector<M> init(n);auto make_M = [&](char c) {M a;rep(i, 4) rep(j, 4) a[i][j] = INF;int x = c - 'A';rep(i, 4) rep(j, 4) if (i <= j) {a[i][j] = !(i <= x && x <= j);}return a;};rep(i, n) {init[i] = make_M(s[i]);}segtree<M, op, e> seg(init);rep(_, q) {int type;cin >> type;if (type == 1) {int x;char c;cin >> x >> c;x--;s[x] = c;seg.set(x, make_M(c));} else {int l, r;cin >> l >> r;l--;auto a = seg.prod(l, r);int res = INF;rep(j, 4) chmin(res, a[0][j]);cout << res << '\n';}}}