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ID | 题目 | 提交者 | 结果 | 用时 | 内存 | 语言 | 文件大小 | 提交时间 | 测评时间 |
---|---|---|---|---|---|---|---|---|---|
#506558 | #4912. WereYouLast | A_box_of_yogurt | 100 ✓ | 3991ms | 4996kb | C++14 | 835b | 2024-08-05 19:26:05 | 2024-08-05 19:26:06 |
Judging History
answer
//
#include <bits/stdc++.h>
using namespace std;
bool query (int);
void modify (int, bool);
bool WereYouLast (int n, int m) {
if(m == 10) {
int pos = 0;
for(int i = 1; i <= m; ++i) {
pos <<= 1;
pos |= query(i);
}
if(++pos == n) return true;
for(int i = m; i && pos; --i, pos >>= 1) {
modify(i, pos & 1);
}
return 0;
}
int len = __lg(n), pos = 0;
for(int i = 1; i <= 5; ++i) {
pos <<= 1;
pos |= query(i);
}
if(++pos == 32) return true;
if(query(5 + pos)) {
modify(5 + pos, 0);
int t = pos;
for(int i = 5; i && t; --i, t >>= 1) {
modify(i, t & 1);
}
}
else {
if(pos == len) {
for(int i = 1; i <= 5; ++i) {
modify(i, 1);
}
}
else {
modify(5 + pos, 1);
for(int i = 1; i <= 5; ++i) {
modify(i, 0);
}
}
}
return 0;
}
详细
Subtask #1:
score: 10
Accepted
Test #1:
score: 10
Accepted
time: 1ms
memory: 3808kb
input:
1024 10
output:
12345876 10 10
result:
ok Correct Answer. C1 = 10. C2 = 10.
Subtask #2:
score: 20
Accepted
Test #2:
score: 20
Accepted
time: 5ms
memory: 4960kb
input:
65536 100000
output:
12345876 6 6
result:
ok Correct Answer. C1 = 6. C2 = 6.
Subtask #3:
score: 30
Accepted
Test #3:
score: 30
Accepted
time: 64ms
memory: 4984kb
input:
1048576 100000
output:
12345876 6 6
result:
ok Correct Answer. C1 = 6. C2 = 6.
Subtask #4:
score: 40
Accepted
Test #4:
score: 40
Accepted
time: 3991ms
memory: 4996kb
input:
67108864 100000
output:
12345876 6 6
result:
ok Correct Answer. C1 = 6. C2 = 6.