답안 #18656 :: oj.uz

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
18656	2016-02-13T11:35:31 Z	suhgyuho_william	말 (IOI15_horses)	C++	34 / 100	88 ms	12812 KB

horses

#include "horses.h"

int N;
long long ans,sb3;
long long x[500002],y[500002];

#define MOD 1000000007

long long inv(long long value){
	if(value == 1) return 1;
	long long tmp = (inv(MOD%value)*((-value)/MOD));
	tmp %= MOD;
	if(tmp < 0) tmp += MOD;
	return tmp;
}

int process1(){
	int i,t;
	long long 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;
		}
    }
    sb3 = 1;
	for(i=1; i<=N-30; i++){
		sb3 *= x[i];
		sb3 %= MOD;
    }
    ans *= y[t];
    ans %= MOD;

	return (int)ans;
}

void subtask3(){
	int i,t;
	long long tmp;

	ans = x[N-29]*sb3; ans %= MOD;
	t = N-29; tmp = 1;
	for(i=N-28; 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;
}

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;
    process1();
}

int updateX(int pos, int val) {
	pos++;
	if(N <= 1000){ x[pos] = (long long)val; return process1(); }
	if(N-29 <= pos){
		x[pos] = (long long)val;
		subtask3();
	}else{
		ans *= inv(x[pos]); sb3 *= inv(x[pos]);
		ans %= MOD; sb3 %= MOD;
		x[pos] = (long long)val;
		ans *= x[pos]; sb3 *= x[pos];
		ans %= MOD; sb3 %= MOD;
	}
	return (int)ans;
}

int updateY(int pos, int val) {
	pos++;
	if(N <= 1000){ y[pos] = (long long)val; return process1(); }
	if(N-29 <= pos){
		y[pos] = (long long)val;
		subtask3();
	}else{
		y[pos] = (long long)val;
	}
	return (int)ans;
}

Subtask #1
17.0 / 17.0

#	결과	메모리	Grader output
1	Correct	8900 KB	Output is correct
2	Correct	8900 KB	Output is correct
3	Correct	8900 KB	Output is correct
4	Correct	8900 KB	Output is correct
5	Correct	8900 KB	Output is correct
6	Correct	8900 KB	Output is correct
7	Correct	8900 KB	Output is correct
8	Correct	8900 KB	Output is correct
9	Correct	8900 KB	Output is correct
10	Correct	8900 KB	Output is correct
11	Correct	8900 KB	Output is correct
12	Correct	8900 KB	Output is correct
13	Correct	8900 KB	Output is correct
14	Correct	8900 KB	Output is correct
15	Correct	8900 KB	Output is correct
16	Correct	8900 KB	Output is correct
17	Correct	8900 KB	Output is correct
18	Correct	8900 KB	Output is correct
19	Correct	8900 KB	Output is correct
20	Correct	8900 KB	Output is correct

Subtask #2
17.0 / 17.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	8900 KB	Output is correct
2	Correct	0 ms	8900 KB	Output is correct
3	Correct	0 ms	8900 KB	Output is correct
4	Correct	0 ms	8900 KB	Output is correct
5	Correct	0 ms	8900 KB	Output is correct
6	Correct	0 ms	8900 KB	Output is correct
7	Correct	0 ms	8900 KB	Output is correct
8	Correct	0 ms	8900 KB	Output is correct
9	Correct	0 ms	8900 KB	Output is correct
10	Correct	0 ms	8900 KB	Output is correct
11	Correct	0 ms	8900 KB	Output is correct
12	Correct	0 ms	8900 KB	Output is correct
13	Correct	0 ms	8900 KB	Output is correct
14	Correct	0 ms	8900 KB	Output is correct
15	Correct	0 ms	8900 KB	Output is correct
16	Correct	0 ms	8900 KB	Output is correct
17	Correct	0 ms	8900 KB	Output is correct
18	Correct	0 ms	8900 KB	Output is correct
19	Correct	0 ms	8900 KB	Output is correct
20	Correct	0 ms	8900 KB	Output is correct
21	Correct	0 ms	8900 KB	Output is correct
22	Correct	0 ms	8900 KB	Output is correct
23	Correct	11 ms	8900 KB	Output is correct
24	Correct	11 ms	8900 KB	Output is correct
25	Correct	15 ms	8900 KB	Output is correct
26	Correct	14 ms	8900 KB	Output is correct
27	Correct	10 ms	8900 KB	Output is correct
28	Correct	13 ms	8900 KB	Output is correct
29	Correct	6 ms	8900 KB	Output is correct
30	Correct	11 ms	8900 KB	Output is correct
31	Correct	10 ms	8900 KB	Output is correct
32	Correct	9 ms	8900 KB	Output is correct

Subtask #3
0.0 / 20.0

#	결과	실행 시간	메모리	Grader output
1	Correct	71 ms	12812 KB	Output is correct
2	Incorrect	88 ms	12812 KB	Output isn't correct
3	Halted	0 ms	0 KB	-

Subtask #4
0.0 / 23.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	8900 KB	Output is correct
2	Correct	0 ms	8900 KB	Output is correct
3	Correct	0 ms	8900 KB	Output is correct
4	Correct	0 ms	8900 KB	Output is correct
5	Correct	0 ms	8900 KB	Output is correct
6	Correct	0 ms	8900 KB	Output is correct
7	Correct	0 ms	8900 KB	Output is correct
8	Correct	0 ms	8900 KB	Output is correct
9	Correct	0 ms	8900 KB	Output is correct
10	Correct	0 ms	8900 KB	Output is correct
11	Correct	0 ms	8900 KB	Output is correct
12	Correct	0 ms	8900 KB	Output is correct
13	Correct	0 ms	8900 KB	Output is correct
14	Correct	0 ms	8900 KB	Output is correct
15	Correct	0 ms	8900 KB	Output is correct
16	Correct	0 ms	8900 KB	Output is correct
17	Correct	0 ms	8900 KB	Output is correct
18	Correct	0 ms	8900 KB	Output is correct
19	Correct	0 ms	8900 KB	Output is correct
20	Correct	0 ms	8900 KB	Output is correct
21	Correct	0 ms	8900 KB	Output is correct
22	Correct	0 ms	8900 KB	Output is correct
23	Correct	11 ms	8900 KB	Output is correct
24	Correct	7 ms	8900 KB	Output is correct
25	Correct	15 ms	8900 KB	Output is correct
26	Correct	12 ms	8900 KB	Output is correct
27	Correct	10 ms	8900 KB	Output is correct
28	Correct	13 ms	8900 KB	Output is correct
29	Correct	6 ms	8900 KB	Output is correct
30	Correct	13 ms	8900 KB	Output is correct
31	Correct	10 ms	8900 KB	Output is correct
32	Correct	10 ms	8900 KB	Output is correct
33	Incorrect	51 ms	12812 KB	Output isn't correct
34	Halted	0 ms	0 KB	-

Subtask #5
0.0 / 23.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	8900 KB	Output is correct
2	Correct	0 ms	8900 KB	Output is correct
3	Correct	0 ms	8900 KB	Output is correct
4	Correct	0 ms	8900 KB	Output is correct
5	Correct	0 ms	8900 KB	Output is correct
6	Correct	0 ms	8900 KB	Output is correct
7	Correct	0 ms	8900 KB	Output is correct
8	Correct	0 ms	8900 KB	Output is correct
9	Correct	0 ms	8900 KB	Output is correct
10	Correct	0 ms	8900 KB	Output is correct
11	Correct	0 ms	8900 KB	Output is correct
12	Correct	0 ms	8900 KB	Output is correct
13	Correct	0 ms	8900 KB	Output is correct
14	Correct	0 ms	8900 KB	Output is correct
15	Correct	0 ms	8900 KB	Output is correct
16	Correct	0 ms	8900 KB	Output is correct
17	Correct	0 ms	8900 KB	Output is correct
18	Correct	0 ms	8900 KB	Output is correct
19	Correct	0 ms	8900 KB	Output is correct
20	Correct	0 ms	8900 KB	Output is correct
21	Correct	0 ms	8900 KB	Output is correct
22	Correct	0 ms	8900 KB	Output is correct
23	Correct	11 ms	8900 KB	Output is correct
24	Correct	11 ms	8900 KB	Output is correct
25	Correct	15 ms	8900 KB	Output is correct
26	Correct	14 ms	8900 KB	Output is correct
27	Correct	10 ms	8900 KB	Output is correct
28	Correct	10 ms	8900 KB	Output is correct
29	Correct	9 ms	8900 KB	Output is correct
30	Correct	12 ms	8900 KB	Output is correct
31	Correct	10 ms	8900 KB	Output is correct
32	Correct	0 ms	8900 KB	Output is correct
33	Correct	43 ms	12812 KB	Output is correct
34	Incorrect	69 ms	12812 KB	Output isn't correct
35	Halted	0 ms	0 KB	-

답안 #18656

Compilation message

Subtask #1 17.0 / 17.0

Subtask #2 17.0 / 17.0

Subtask #3 0.0 / 20.0

Subtask #4 0.0 / 23.0

Subtask #5 0.0 / 23.0

Subtask #1
17.0 / 17.0

Subtask #2
17.0 / 17.0

Subtask #3
0.0 / 20.0

Subtask #4
0.0 / 23.0

Subtask #5
0.0 / 23.0