結果
問題 | No.928 軽減税率? |
ユーザー | fine |
提出日時 | 2019-11-22 22:45:15 |
言語 | C++14 (gcc 12.3.0 + boost 1.83.0) |
結果 |
WA
|
実行時間 | - |
コード長 | 1,473 bytes |
コンパイル時間 | 1,785 ms |
コンパイル使用メモリ | 168,832 KB |
実行使用メモリ | 6,824 KB |
最終ジャッジ日時 | 2024-10-11 04:22:20 |
合計ジャッジ時間 | 2,747 ms |
ジャッジサーバーID (参考情報) |
judge3 / judge1 |
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テストケース
テストケース表示入力 | 結果 | 実行時間 実行使用メモリ |
---|---|---|
testcase_00 | AC | 3 ms
6,820 KB |
testcase_01 | AC | 3 ms
6,816 KB |
testcase_02 | WA | - |
testcase_03 | WA | - |
testcase_04 | AC | 3 ms
6,816 KB |
testcase_05 | AC | 3 ms
6,820 KB |
testcase_06 | AC | 3 ms
6,816 KB |
testcase_07 | AC | 3 ms
6,816 KB |
testcase_08 | AC | 3 ms
6,820 KB |
testcase_09 | AC | 3 ms
6,816 KB |
testcase_10 | AC | 3 ms
6,820 KB |
testcase_11 | AC | 3 ms
6,816 KB |
testcase_12 | AC | 3 ms
6,820 KB |
testcase_13 | AC | 3 ms
6,820 KB |
testcase_14 | AC | 3 ms
6,816 KB |
testcase_15 | AC | 3 ms
6,816 KB |
testcase_16 | AC | 3 ms
6,816 KB |
testcase_17 | WA | - |
testcase_18 | WA | - |
testcase_19 | WA | - |
testcase_20 | WA | - |
testcase_21 | WA | - |
testcase_22 | AC | 2 ms
6,816 KB |
testcase_23 | AC | 2 ms
6,820 KB |
testcase_24 | WA | - |
testcase_25 | WA | - |
testcase_26 | WA | - |
testcase_27 | WA | - |
testcase_28 | WA | - |
testcase_29 | WA | - |
testcase_30 | WA | - |
testcase_31 | WA | - |
testcase_32 | AC | 2 ms
6,816 KB |
testcase_33 | WA | - |
testcase_34 | WA | - |
testcase_35 | WA | - |
コンパイルメッセージ
main.cpp: In function 'int main()': main.cpp:30:22: warning: 'x' may be used uninitialized [-Wmaybe-uninitialized] 30 | ll x = min(x + 200000, 1000000000LL); | ~~^~~~~~~~ main.cpp:30:12: note: 'x' was declared here 30 | ll x = min(x + 200000, 1000000000LL); | ^ main.cpp:47:18: warning: 'x' may be used uninitialized [-Wmaybe-uninitialized] 47 | ll x = max(x - 200000, 0LL); | ~~^~~~~~~~ main.cpp:47:8: note: 'x' was declared here 47 | ll x = max(x - 200000, 0LL); | ^
ソースコード
#include <bits/stdc++.h> using namespace std; using ll = long long; // (100 + q) * x + 100 * a + 1 > (100 + p) * x // (q - p) * x > -100 * a + 1 // x > (100-100 * a) / (q - p) [q > p] // x < (100 * a - 100) / (p - q) [q < p] int main() { cin.tie(0); ios::sync_with_stdio(false); ll p, q, a; cin >> p >> q >> a; if (p == q) { cout << (a == 0 ? 0 : 1000000000) << "\n"; return 0; } if (q > p) { ll ng = 0, ok = 1e9 + 1; while (ok - ng > 1) { ll mid = (ok + ng) / 2; ll v1 = (100 + p) * mid / 100; ll v2 = (100 + q) * mid / 100 + a; (v2 > v1 ? ok : ng) = mid; } ll x = min(x + 200000, 1000000000LL); ll ans = 1000000000LL - x + 1; for (ll i = x - 1; i >= max(x - 400000, 0LL); i--) { ll v1 = (100 + p) * i / 100; ll v2 = (100 + q) * i / 100 + a; ans += (v2 > v1); } cout << ans << endl; } ll ok = 0, ng = 1e9 + 1; while (ng - ok > 1) { ll mid = (ok + ng) / 2; ll v1 = (100 + p) * mid / 100; ll v2 = (100 + q) * mid / 100 + a; (v2 > v1 ? ok : ng) = mid; } ll x = max(x - 200000, 0LL); ll ans = x; for (ll i = x + 1; i <= min(x + 400000, 1000000000LL); i++) { ll v1 = (100 + p) * i / 100; ll v2 = (100 + q) * i / 100 + a; ans += (v2 > v1); } cout << ans << endl; return 0; }