結果
| 問題 |
No.3072 Speedrun Query
|
| コンテスト | |
| ユーザー |
tnakao0123
|
| 提出日時 | 2025-03-24 13:15:01 |
| 言語 | C++17 (gcc 13.3.0 + boost 1.87.0) |
| 結果 |
AC
|
| 実行時間 | 345 ms / 2,500 ms |
| コード長 | 1,391 bytes |
| コンパイル時間 | 357 ms |
| コンパイル使用メモリ | 41,856 KB |
| 実行使用メモリ | 7,324 KB |
| 最終ジャッジ日時 | 2025-03-24 13:15:10 |
| 合計ジャッジ時間 | 9,063 ms |
|
ジャッジサーバーID (参考情報) |
judge4 / judge1 |
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| ファイルパターン | 結果 |
|---|---|
| sample | AC * 1 |
| other | AC * 21 |
コンパイルメッセージ
main.cpp: In function ‘int main()’:
main.cpp:36:8: warning: ignoring return value of ‘int scanf(const char*, ...)’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
36 | scanf("%d%d%d", &n, &ka, &kb);
| ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
main.cpp:37:37: warning: ignoring return value of ‘int scanf(const char*, ...)’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
37 | for (int i = 0; i < ka; i++) scanf("%d", as + i);
| ~~~~~^~~~~~~~~~~~~~
main.cpp:38:37: warning: ignoring return value of ‘int scanf(const char*, ...)’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
38 | for (int i = 0; i < kb; i++) scanf("%d", bs + i);
| ~~~~~^~~~~~~~~~~~~~
main.cpp:50:8: warning: ignoring return value of ‘int scanf(const char*, ...)’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
50 | scanf("%d", &qn);
| ~~~~~^~~~~~~~~~~
main.cpp:54:10: warning: ignoring return value of ‘int scanf(const char*, ...)’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
54 | scanf("%d%d", &s, &t);
| ~~~~~^~~~~~~~~~~~~~~~
ソースコード
/* -*- coding: utf-8 -*-
*
* 3072.cc: No.3072 Speedrun Query - yukicoder
*/
#include<cstdio>
#include<algorithm>
using namespace std;
/* constant */
const int MAX_N = 300000;
const int INF = 1 << 30;
/* typedef */
/* global variables */
int as[MAX_N], bs[MAX_N];
/* subroutines */
int distv(int k, int vs[], int x) {
int i = lower_bound(vs, vs + k, x) - vs;
int d = INF;
if (i < k) d = min(d, vs[i] - x);
if (i > 0) d = min(d, x - vs[i - 1]);
return d;
}
/* main */
int main() {
int n, ka, kb;
scanf("%d%d%d", &n, &ka, &kb);
for (int i = 0; i < ka; i++) scanf("%d", as + i);
for (int i = 0; i < kb; i++) scanf("%d", bs + i);
int minab = INF;
for (int i = 0, j = 0; i < ka && j < kb;) {
minab = min(minab, abs(bs[j] - as[i]));
if (as[i] == bs[j]) break;
if (as[i] < bs[j]) i++;
else j++;
}
//printf(" minab = %d\n", minab);
int qn;
scanf("%d", &qn);
while (qn--) {
int s, t;
scanf("%d%d", &s, &t);
// (1) s->t
int d = abs(t - s);
// (2) s->(a)->t
int dsa = distv(ka, as, s), dta = distv(ka, as, t);
d = min(d, dsa + dta);
// (3) s->(b)->t
int dsb = distv(kb, bs, s), dtb = distv(kb, bs, t);
d = min(d, dsb + dtb);
// (4) s->(a)->(b)->t
d = min(d, dsa + minab + dtb);
// (5) s->(b)->(a)->t
d = min(d, dsb + minab + dta);
printf("%d\n", d);
}
return 0;
}
tnakao0123