Submission #918910

#	Time	Username	Problem	Language	Result	Execution time	Memory
918910		mychecksedad	Deda (COCI17_deda)	C++17	60 / 140	1047 ms	3084 KiB

deda

/* Author : Mychecksdead  */
#include<bits/stdc++.h>
using namespace std;
#define ll long long int
#define MOD (1000000000+7)
#define MOD1 (998244353)
#define pb push_back
#define all(x) x.begin(), x.end()
#define en cout << '\n'
const int N = 1e6+100, M = 1e5+10, K = 52, MX = 30;

int n, q, T[N];
void build(int l, int r, int k){
  if(l == r){
    T[k] = MOD;
    return;
  }
  int m = l+r>>1;
  build(l, m, k<<1);
  build(m+1, r, k<<1|1);
  T[k] = 0;
}
void upd(int l, int r, int p, int k, int val){
  if(l == r){
    T[k] = val;
    return;
  }
  int m = l+r>>1;
  if(p <= m) upd(l, m, p, k<<1, val);
  else upd(m+1, r, p, k<<1|1, val);
  T[k] = min(T[k<<1], T[k<<1|1]);
}
int get(int l, int r, int p, int k, int val){
  if(l == r){
    return l;
  }
  int m = l+r>>1;
  int v = -1;
  if(m >= p && T[k<<1] <= val)
    v = get(l, m, p, k<<1, val);
  if(v != -1) return v;
  if(T[k<<1|1] > val) return -1;
  return get(m+1, r, p, k<<1|1, val);
}
void solve(){
  cin >> n >> q;
  build(1, n, 1);
  for(int i = 0; i < q; ++i){
    char c; cin >> c;
    if(c == 'M'){
      int X, A; cin >> X >> A;
      upd(1, n, A, 1, X);
    }else{
      int B, Y; cin >> Y >> B;
      cout << get(1, n, B, 1, Y) << '\n';
    }
  }
}



int main(){
  cin.tie(0); ios::sync_with_stdio(0);
  int tt = 1, aa;
  // freopen("in.txt", "r", stdin);
  // freopen("out.txt", "w", stdout);
  while(tt--){
    solve();
    en;
  }
  cerr<<"time taken : "<<(float)clock()/CLOCKS_PER_SEC<<" seconds\n";
  return 0;
} 

Compilation message (stderr)

deda.cpp: In function 'void build(int, int, int)':
deda.cpp:18:12: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   18 |   int m = l+r>>1;
      |           ~^~
deda.cpp: In function 'void upd(int, int, int, int, int)':
deda.cpp:28:12: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   28 |   int m = l+r>>1;
      |           ~^~
deda.cpp: In function 'int get(int, int, int, int, int)':
deda.cpp:37:12: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   37 |   int m = l+r>>1;
      |           ~^~
deda.cpp: In function 'int main()':
deda.cpp:64:15: warning: unused variable 'aa' [-Wunused-variable]
   64 |   int tt = 1, aa;
      |               ^~

• Subtask 1: 60 / 140