Submission #65459

#	Time	Username	Problem	Language	Result	Execution time	Memory
65459		boook	Game (IOI13_game)	C++14	63 / 100	4771 ms	257024 KiB

game

#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
using namespace std;
using namespace __gnu_pbds;
#define REP(i,j,k)     for(int i = j ; i < k ; ++i)
#define RREP(i,j,k)    for(int i = j ; i >=k ; --i)
#define A    first
#define B    second
#define mp   make_pair
#define pb   emplace_back
#define PII pair<long long , long long>
#define MEM(i,j)   memset(i , j , sizeof i)
#define ALL(i)     i.begin() , i.end()
#define DBGG(i,j)     cout << i << " " << j << endl
#define DB4(i,j,k,l)  cout << i << " " << j << " " << k << " " << l << endl
#define IOS cin.tie(0) , cout.sync_with_stdio(0)
#define endl "\n"
//------------------------------------------------------------
// #include "grader.h"
#include "game.h"
#define MAX 23000
#define INF 0x3f3f3f3f
#define mid (l + (r - l) / 2)

long long n , m;
long long sum[MAX * 700];
int ls[MAX * 700] , rs[MAX * 700] , pos = 2;
long long GCD(long long a , long long b){
    // if(a && b) cout << a << " " << b << endl;
    return __gcd(a , b);
}
void init(int R, int C) {
    n = R , m = C;
}
void update2(long long now , long long l , long long r , long long x , long long y , long long val){
    if(l == r) sum[now] = val;// , DB4("now update" , l , now , val);
    else {
        if((y * n + x) <= mid + 0){
            if(ls[now] == 0) ls[now] = pos ++;
            update2(ls[now] , l , mid + 0 , x , y , val);
        }
        if(mid + 1 <= y * n + x){
            if(rs[now] == 0) rs[now] = pos ++;
            update2(rs[now] , mid + 1 , r , x , y , val);
        }
        sum[now] = GCD(sum[ls[now]] , sum[rs[now]]);
    }
    // DB4("now = " , sum[now] , sum[ls[now]] , sum[rs[now]]);
}
void update1(long long now , long long l , long long r , long long x , long long y , long long val){
    if(sum[now] == 0) sum[now] = pos ++;
    update2(sum[now] , 0 , m * n , x , y , val);
    if(l == r);
    else {
        if(x <= mid + 0){
            if(ls[now] == 0) ls[now] = pos ++;
            update1(ls[now] , l , mid + 0 , x , y , val);
        }
        if(mid + 1 <= x){
            if(rs[now] == 0) rs[now] = pos ++;
            update1(rs[now] , mid + 1 , r , x , y , val);
        }
    }
    
}
void update(int P, int Q, long long K) {
    update1(1 , 0 , n , P , Q , K);
}
long long query2(long long now , long long l , long long r , long long ql , long long qr){
    // DBGG("now = " , now);
    if(now == 0) return 0;
    if(ql <= l && r <= qr) return sum[now];
    else if(qr <= mid + 0) return query2(ls[now] , l , mid + 0 , ql , qr);
    else if(mid + 1 <= ql) return query2(rs[now] , mid + 1 , r , ql , qr);
    else GCD(query2(ls[now] , l , mid + 0 , ql , qr) , query2(rs[now] , mid + 1 , r , ql , qr));
}
long long query1(long long now , long long l , long long r , long long ql , long long qr , long long c , long long d){
    if(now == 0) return 0;
    if(ql <= l && r <= qr) return query2(sum[now] , 0 , m * n , c * n , d * n + n - 1);
    else if(qr <= mid + 0) return query1(ls[now] , l , mid + 0 , ql , qr , c , d);
    else if(mid + 1 <= ql) return query1(rs[now] , mid + 1 , r , ql , qr , c , d);
    return GCD(query1(ls[now] , l , mid + 0 , ql , qr , c , d)
               , query1(rs[now] , mid + 1 , r , ql , qr , c , d));
}
long long calculate(int P, int Q, int U, int V) {
    return query1(1 , 0 , n , P , U , Q , V);
}

Compilation message (stderr)

grader.c: In function 'int main()':
grader.c:18:6: warning: variable 'res' set but not used [-Wunused-but-set-variable]
  int res;
      ^~~
game.cpp: In function 'long long int query2(long long int, long long int, long long int, long long int, long long int)':
game.cpp:76:1: warning: control reaches end of non-void function [-Wreturn-type]
 }
 ^

• Subtask 1: 10 / 10
• Subtask 2: 27 / 27
• Subtask 3: 26 / 26
• Subtask 4: 0 / 17
• Subtask 5: 0 / 20