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QOJ
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 |
---|---|---|---|---|---|---|---|---|---|
#562331 | #5981. Costly Binary Search | Z_drj | 27 ✓ | 28814ms | 86220kb | C++14 | 1.6kb | 2024-09-13 16:49:33 | 2024-09-13 16:49:33 |
Judging History
answer
#include <bits/stdc++.h>
using i64 = long long;
const int N = 1E6 + 5;
int n;
std::string s;
int a[N];
int L[10][N], R[10][N];
// int f[300][300];
void solve() {
std::cin >> s;
n = s.length();
for (int i = 1; i <= n; i++) {
a[i] = s[i - 1] - '0';
// f[i][i] = a[i];
}
// for (int i = 1; i < n; i++) {
// f[i][i + 1] = a[i] + a[i + 1];
// }
// for (int len = 3; len <= n; len++) {
// for (int l = 1, r = len; r <= n; ++l, ++r) {
// f[l][r] = 1E9;
// for (int k = l + 1; k < r; k++) {
// f[l][r] = std::min(f[l][r], a[k] + std::max(f[l][k - 1], f[k + 1][r]));
// }
// }
// }
int ans = 1E9;
for (int c = 0; c <= 180; c++) {
int now = c % 10;
for (int i = 0; i <= n + 1; i++) {
L[now][i] = i + 1;
R[now][i] = i - 1;
}
for (int i = 1; i <= n; i++) {
if (c >= a[i]) {
int x = L[(c - a[i]) % 10][i - 1], y = R[(c - a[i]) % 10][i + 1];
L[now][y] = std::min(L[now][y], x);
R[now][x] = std::max(R[now][x], y);
}
}
for (int i = n; i >= 1; i--) {
L[now][i] = std::min(L[now][i], L[now][i + 1]);
}
for (int i = 1; i <= n; i++) {
R[now][i] = std::max(R[now][i], R[now][i - 1]);
}
for (int i = 1; i <= n; i++) {
if (L[now][i - 1] <= 1 && R[now][i + 1] >= n) {
ans = std::min(ans, c + a[i]);
}
}
}
std::cout << ans << "\n";
}
int main() {
std::ios::sync_with_stdio(false);
std::cin.tie(nullptr);
int T;
std::cin >> T;
for (int i = 1; i <= T; i++) {
std::cout << "Case #" << i << ": ";
solve();
}
return 0;
}
详细
Subtask #1:
score: 8
Accepted
Test #1:
score: 8
Accepted
time: 280ms
memory: 44660kb
input:
50 8 5128831164925953487661279378526736416489768154389124821528467927357884749642747626797857463132866343496157991453139582295398452863172464853698678624523849653538713928372648295734165346972222781179687541337591976277864785653638476127839556323849395641196246971351933655287441377531627938395427487...
output:
Case #1: 8 Case #2: 37 Case #3: 34 Case #4: 37 Case #5: 34 Case #6: 114 Case #7: 126 Case #8: 24 Case #9: 37 Case #10: 103 Case #11: 36 Case #12: 64 Case #13: 37 Case #14: 117 Case #15: 37 Case #16: 35 Case #17: 14 Case #18: 34 Case #19: 36 Case #20: 37 Case #21: 38 Case #22: 39 Case #23: 14 Case #2...
result:
ok 50 lines
Subtask #2:
score: 19
Accepted
Test #2:
score: 19
Accepted
time: 28814ms
memory: 86220kb
input:
50 647322722753778843259213887674615134214258235986992692879314555957455541351526284343217116351733247781713552149464672262787737941588358671583528664757823365936975517145283412965139791726299864122725212222496898855627124979178341548651669956711341742838725446489235961853391195148929571712449139335...
output:
Case #1: 42 Case #2: 43 Case #3: 120 Case #4: 42 Case #5: 43 Case #6: 43 Case #7: 31 Case #8: 43 Case #9: 171 Case #10: 42 Case #11: 39 Case #12: 42 Case #13: 42 Case #14: 44 Case #15: 39 Case #16: 20 Case #17: 180 Case #18: 30 Case #19: 45 Case #20: 43 Case #21: 44 Case #22: 31 Case #23: 83 Case #2...
result:
ok 50 lines
Extra Test:
score: 0
Extra Test Passed