Submission #18654

#	Time	Username	Problem	Language	Result	Execution time	Memory
18654		suhgyuho_william	Horses (IOI15_horses)	C++98	34 / 100	56 ms	12812 KiB

horses

#include "horses.h"

int N;
long long x[500002],y[500002];

#define MOD 1000000007

int process1(){
	int i,t;
	long long ans,tmp;

    ans = x[1];
    t = tmp = 1;
    for(i=2; i<=N; i++){
		tmp *= x[i];
		if(tmp > y[t] || tmp*y[i] > y[t]){
			t = i;
			ans *= (tmp%MOD); ans %= MOD;
			tmp = 1;
		}
    }
    ans *= y[t];
    ans %= MOD;

	return (int)ans;
}

int init(int n, int X[], int Y[]) {
    int i;

    for(i=1; i<=n; i++){
		x[i] = (long long)X[i-1];
		y[i] = (long long)Y[i-1];
    }
    N = n;
    if(N <= 1000){
		return process1();
    }

}

int updateX(int pos, int val) {
	if(N <= 1000){
		x[pos+1] = (long long)val;
		return process1();
	}
}

int updateY(int pos, int val) {
	if(N <= 1000){
		y[pos+1] = (long long)val;
		return process1();
	}
}

• Subtask 1: 17 / 17
• Subtask 2: 17 / 17
• Subtask 3: 0 / 20
• Subtask 4: 0 / 23
• Subtask 5: 0 / 23