結果
| 問題 |
No.3185 Three Abs
|
| コンテスト | |
| ユーザー |
tnakao0123
|
| 提出日時 | 2025-06-22 15:49:14 |
| 言語 | C++17 (gcc 13.3.0 + boost 1.87.0) |
| 結果 |
AC
|
| 実行時間 | 92 ms / 2,000 ms |
| コード長 | 896 bytes |
| コンパイル時間 | 558 ms |
| コンパイル使用メモリ | 42,472 KB |
| 実行使用メモリ | 7,844 KB |
| 最終ジャッジ日時 | 2025-06-22 15:49:22 |
| 合計ジャッジ時間 | 7,869 ms |
|
ジャッジサーバーID (参考情報) |
judge1 / judge3 |
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| ファイルパターン | 結果 |
|---|---|
| sample | AC * 1 |
| other | AC * 30 |
コンパイルメッセージ
main.cpp: In function ‘int main()’:
main.cpp:30:8: warning: ignoring return value of ‘int scanf(const char*, ...)’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
30 | scanf("%d", &tn);
| ~~~~~^~~~~~~~~~~
main.cpp:34:10: warning: ignoring return value of ‘int scanf(const char*, ...)’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
34 | scanf("%d", &n);
| ~~~~~^~~~~~~~~~
main.cpp:35:38: warning: ignoring return value of ‘int scanf(const char*, ...)’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
35 | for (int i = 0; i < n; i++) scanf("%d", as + i);
| ~~~~~^~~~~~~~~~~~~~
ソースコード
/* -*- coding: utf-8 -*-
*
* 3185.cc: No.3185 Three Abs - yukicoder
*/
#include<cstdio>
#include<algorithm>
using namespace std;
/* constant */
const int MAX_N = 200000;
/* typedef */
using ll = long long;
/* global variables */
int as[MAX_N];
ll ass[MAX_N + 1];
/* subroutines */
/* main */
int main() {
int tn;
scanf("%d", &tn);
while (tn--) {
int n;
scanf("%d", &n);
for (int i = 0; i < n; i++) scanf("%d", as + i);
for (int i = 0; i < n; i++) ass[i + 1] = ass[i] + as[i];
ll maxsc = ass[n], mins = 0, maxs = 0;
for (int i = 1; i <= n; i++) {
ll sc0 = abs(mins) + abs(ass[i] - mins) + abs(ass[n] - ass[i]);
ll sc1 = abs(maxs) + abs(ass[i] - maxs) + abs(ass[n] - ass[i]);
maxsc = max(maxsc, max(sc0, sc1));
mins = min(mins, ass[i]);
maxs = max(maxs, ass[i]);
}
printf("%lld\n", maxsc);
}
return 0;
}
tnakao0123