답안 #18657 :: oj.uz

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
18657	2016-02-13T11:43:11 Z	suhgyuho_william	말 (IOI15_horses)	C++	54 / 100	127 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)*((-MOD)/value));
	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(pos < N-29){
        sb3 *= inv(x[pos]);
        sb3 %= MOD;
        sb3 *= (long long)val;
        sb3 %= MOD;
	}
	x[pos] = (long long)val;
	subtask3();

	return (int)ans;
}

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

	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	7 ms	8900 KB	Output is correct
25	Correct	15 ms	8900 KB	Output is correct
26	Correct	15 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	9 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	10 ms	8900 KB	Output is correct

Subtask #3
20.0 / 20.0

#	결과	실행 시간	메모리	Grader output
1	Correct	57 ms	12812 KB	Output is correct
2	Correct	127 ms	12812 KB	Output is correct
3	Correct	61 ms	12812 KB	Output is correct
4	Correct	94 ms	12812 KB	Output is correct

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	1 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	8 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	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	7 ms	8900 KB	Output is correct
33	Incorrect	26 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	9 ms	8900 KB	Output is correct
24	Correct	11 ms	8900 KB	Output is correct
25	Correct	12 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	9 ms	8900 KB	Output is correct
30	Correct	9 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	Correct	45 ms	12812 KB	Output is correct
34	Correct	96 ms	12812 KB	Output is correct
35	Correct	80 ms	12812 KB	Output is correct
36	Correct	111 ms	12812 KB	Output is correct
37	Incorrect	30 ms	12812 KB	Output isn't correct
38	Halted	0 ms	0 KB	-

답안 #18657

Compilation message

Subtask #1 17.0 / 17.0

Subtask #2 17.0 / 17.0

Subtask #3 20.0 / 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
20.0 / 20.0

Subtask #4
0.0 / 23.0

Subtask #5
0.0 / 23.0