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 |
---|---|---|---|---|---|---|---|---|---|
#214451 | #2767. 摆烂 | ThySecret | 50 | 11786ms | 359828kb | C++11 | 2.3kb | 2024-11-18 22:06:06 | 2024-11-19 08:37:24 |
answer
#pragma GCC optimize("Ofast")
#include <bits/stdc++.h>
using namespace std;
#define int long long
#define x first
#define y second
#define File(a) freopen(a".in", "r", stdin), freopen(a".out", "w", stdout)
inline void debug() { cerr << '\n'; }
template<typename Type, typename... Other>
inline void debug(const Type& x, const Other&... y) { cerr << x << ' '; debug(y...); }
#define DEBUG(a...) cerr << "[" << #a << "] = ", debug(a);
typedef long long LL;
typedef pair<int, int> PII;
const int N = 2000010;
const int INF = 2e16;
template<typename Type>
inline void read(Type &res)
{
res = 0;
int ch = getchar(), flag = 0;
while (!isdigit(ch)) flag |= ch == '-', ch = getchar();
while (isdigit(ch)) res = (res << 3) + (res << 1) + (ch ^ 48), ch = getchar();
res = flag ? -res : res;
}
template<typename Type, typename... Other>
inline void read(Type &res, Other&... y) { read(res), read(y...); }
int n;
PII a[N];
int f[21][N], dp[N];
void Init()
{
// for (int i = 1; i <= n; i ++) f[i][0] = a[i].y;
// for (int k = 1; k < 21; k ++)
// for (int i = 1; i + (1 << k) - 1 <= n; i ++)
// f[i][k] = max(f[i][k - 1], f[i + (1 << k - 1)][k - 1]);
for (int i = 1; i <= n; i ++) f[0][i] = a[i].y;
for (int k = 1; k < 21; k ++)
for (int i = 1; i + (1 << k) - 1 <= n; i ++)
f[k][i] = max(f[k - 1][i], f[k - 1][i + (1 << k - 1)]);
}
inline int Query(int l, int r)
{
int k = __lg(r - l + 1);
// return max(f[l][k], f[r - (1 << k) + 1][k]);
return max(f[k][l], f[k][r - (1 << k) + 1]);
}
signed main()
{
memset(dp, 0x3f, sizeof dp), dp[0] = 0;
read(n);
for (int i = 1; i <= n; i ++) read(a[i].x, a[i].y);
Init();
for (int i = 1; i <= n; i ++)
{
if (n <= 1000)
{
for (int j = 0; j < i; j ++)
dp[i] = min(dp[i], max(dp[j], a[i].x) + 2 * Query(j + 1, i));
}
else
{
int l = 1, r = i - 1, res = 0;
while (l <= r)
{
int mid = l + r >> 1;
if (dp[mid] <= a[i].x) res = mid, l = mid + 1;
else r = mid - 1;
}
dp[i] = a[i].x + 2 * Query(res + 1, i);
}
}
cout << dp[n] << '\n';
return 0;
}
详细
小提示:点击横条可展开更详细的信息
Subtask #1:
score: 10
Accepted
Test #1:
score: 10
Accepted
time: 0ms
memory: 48048kb
input:
20 12513359 382258501 49946422 294259408 61782741 259996549 128874560 457675284 152578248 511428369 ...
output:
2781551734
result:
ok 1 number(s): "2781551734"
Test #2:
score: 0
Accepted
time: 4ms
memory: 48048kb
input:
20 6592046 616393821 8538879 124771654 24979050 168650283 59952328 506075107 128878498 796836890 168...
output:
2878186356
result:
ok 1 number(s): "2878186356"
Test #3:
score: 0
Accepted
time: 7ms
memory: 48048kb
input:
20 2099663 147467539 25290040 156795746 197254068 590585918 198843927 512239904 222920966 456981246 ...
output:
2770880243
result:
ok 1 number(s): "2770880243"
Test #4:
score: 0
Accepted
time: 7ms
memory: 48052kb
input:
20 66393530 420843093 90129695 489656570 131248562 182208891 291691534 751771331 342922878 673384475...
output:
2926027520
result:
ok 1 number(s): "2926027520"
Test #5:
score: 0
Accepted
time: 0ms
memory: 48048kb
input:
20 141852945 69130050 155003677 784901688 156591867 730149439 161520357 619098795 188670057 61380271...
output:
2878920725
result:
ok 1 number(s): "2878920725"
Test #6:
score: 0
Accepted
time: 8ms
memory: 48048kb
input:
20 0 333333333 1 333333332 2 333333331 3 333333330 4 333333329 5 333333328 6 333333327 7 333333326 8...
output:
888888906
result:
ok 1 number(s): "888888906"
Test #7:
score: 0
Accepted
time: 8ms
memory: 48048kb
input:
20 0 200000000 1 199999999 2 199999998 3 199999997 4 199999996 5 199999995 6 199999994 7 199999993 8...
output:
799218728
result:
ok 1 number(s): "799218728"
Subtask #2:
score: 20
Accepted
Test #8:
score: 20
Accepted
time: 4ms
memory: 48132kb
input:
1000 132699 718470029 234343 395421925 1290414 393017296 1399642 607415822 1402810 515471990 2008288...
output:
2991845504
result:
ok 1 number(s): "2991845504"
Test #9:
score: 0
Accepted
time: 11ms
memory: 48136kb
input:
1000 1460927 635822050 1474184 113973702 2262058 184319286 2754182 45688636 3158543 762355475 357426...
output:
2997073536
result:
ok 1 number(s): "2997073536"
Test #10:
score: 0
Accepted
time: 4ms
memory: 48136kb
input:
1000 2118442 141038751 2135116 387165975 4874198 290249307 6872737 82266843 7401335 726603624 756080...
output:
2995302771
result:
ok 1 number(s): "2995302771"
Test #11:
score: 0
Accepted
time: 9ms
memory: 48136kb
input:
1000 437090 934565437 1175198 156863320 1198404 324764019 2277385 373440655 2425307 392581950 350360...
output:
2995901355
result:
ok 1 number(s): "2995901355"
Test #12:
score: 0
Accepted
time: 8ms
memory: 48132kb
input:
1000 9066 773817477 123486 806680042 851047 596461942 992394 523789453 1003388 520126158 1323726 958...
output:
2992153228
result:
ok 1 number(s): "2992153228"
Test #13:
score: 0
Accepted
time: 12ms
memory: 48132kb
input:
1000 1219327 803904616 2680619 571390377 2920737 199860734 3524708 883722438 4171344 134002719 59874...
output:
2997734121
result:
ok 1 number(s): "2997734121"
Test #14:
score: 0
Accepted
time: 8ms
memory: 48136kb
input:
1000 2880284 488746460 3414969 562543737 4498732 74314414 9375222 111266686 9458421 596112995 963592...
output:
2998591235
result:
ok 1 number(s): "2998591235"
Test #15:
score: 0
Accepted
time: 0ms
memory: 48136kb
input:
1000 1239163 666132179 1871097 706139536 2956078 487495665 3259471 69911742 4479955 188362973 586756...
output:
2996854561
result:
ok 1 number(s): "2996854561"
Test #16:
score: 0
Accepted
time: 18ms
memory: 48136kb
input:
1000 630980 355641503 934118 736144505 1523728 365898752 4057089 829930253 4910133 224420115 4990452...
output:
2999709988
result:
ok 1 number(s): "2999709988"
Test #17:
score: 0
Accepted
time: 4ms
memory: 48136kb
input:
1000 193594 350732868 965625 322880549 1694055 576483511 1992769 754390117 2507741 171984733 3271204...
output:
2999420445
result:
ok 1 number(s): "2999420445"
Test #18:
score: 0
Accepted
time: 3ms
memory: 48136kb
input:
1000 0 333333333 1 333333332 2 333333331 3 333333330 4 333333329 5 333333328 6 333333327 7 333333326...
output:
888889886
result:
ok 1 number(s): "888889886"
Test #19:
score: 0
Accepted
time: 12ms
memory: 48136kb
input:
1000 0 200000000 1 199999999 2 199999998 3 199999997 4 199999996 5 199999995 6 199999994 7 199999993...
output:
799217760
result:
ok 1 number(s): "799217760"
Subtask #3:
score: 0
Wrong Answer
Test #20:
score: 20
Accepted
time: 22ms
memory: 60356kb
input:
100000 9326 430414358 13368 156324232 15149 550951304 22296 345034579 22578 397947033 37137 49312905...
output:
2999984291
result:
ok 1 number(s): "2999984291"
Test #21:
score: 0
Accepted
time: 20ms
memory: 60356kb
input:
100000 1281 980120279 38572 969057410 60961 443629644 67305 918262285 68761 540475664 79259 86368005...
output:
2999973779
result:
ok 1 number(s): "2999973779"
Test #22:
score: 0
Accepted
time: 23ms
memory: 60352kb
input:
100000 20710 863020655 22837 465689267 34425 232297482 37426 410827133 47298 825839625 48599 2328793...
output:
2999991115
result:
ok 1 number(s): "2999991115"
Test #23:
score: 0
Accepted
time: 15ms
memory: 60356kb
input:
100000 1893 587093713 12130 188883761 20509 103771956 23181 427935148 30291 289716104 52036 41982854...
output:
2999953325
result:
ok 1 number(s): "2999953325"
Test #24:
score: 0
Accepted
time: 23ms
memory: 60356kb
input:
100000 9157 466195030 10932 448643920 15616 675011785 24802 20969130 42481 213957558 43201 100624199...
output:
2999986961
result:
ok 1 number(s): "2999986961"
Test #25:
score: 0
Accepted
time: 13ms
memory: 60352kb
input:
100000 8028 735757896 15346 778429486 19608 762797726 36073 700770644 38385 673827857 39670 79333540...
output:
2999964970
result:
ok 1 number(s): "2999964970"
Test #26:
score: 0
Accepted
time: 25ms
memory: 60352kb
input:
100000 18066 489619655 39420 363288479 45624 255823520 53848 768452718 86073 570556759 97457 1152834...
output:
2999949901
result:
ok 1 number(s): "2999949901"
Test #27:
score: 0
Accepted
time: 21ms
memory: 60356kb
input:
100000 9572 354230841 44475 137493766 73724 908871450 83706 376797074 88538 381989371 90425 46309979...
output:
2999992149
result:
ok 1 number(s): "2999992149"
Test #28:
score: 0
Accepted
time: 20ms
memory: 60356kb
input:
100000 2617 628340050 16629 69440544 45392 441060577 52161 702044189 66272 750166177 70981 780473233...
output:
2999978454
result:
ok 1 number(s): "2999978454"
Test #29:
score: 0
Accepted
time: 28ms
memory: 60352kb
input:
100000 1820 854489707 4143 351640051 6324 246260208 10128 483185284 12354 258240070 17250 502913471 ...
output:
2999978980
result:
ok 1 number(s): "2999978980"
Test #30:
score: -20
Wrong Answer
time: 17ms
memory: 60352kb
input:
100000 0 333333333 1 333333332 2 333333331 3 333333330 4 333333329 5 333333328 6 333333327 7 3333333...
output:
1333333330
result:
wrong answer 1st numbers differ - expected: '888988886', found: '1333333330'
Subtask #4:
score: 20
Accepted
Test #32:
score: 20
Accepted
time: 515ms
memory: 359824kb
input:
2000000 181 24185667 293 532288461 1433 921996635 1694 629544979 2540 173534643 2662 963172401 3159 ...
output:
2999999604
result:
ok 1 number(s): "2999999604"
Test #33:
score: 0
Accepted
time: 499ms
memory: 359824kb
input:
2000000 260 442386156 1749 891768917 1861 616479085 2342 964680659 2627 684052525 2883 384062414 290...
output:
2999998834
result:
ok 1 number(s): "2999998834"
Test #34:
score: 0
Accepted
time: 535ms
memory: 359824kb
input:
2000000 213 424805015 1396 7709726 1506 622452063 1955 116647577 2155 152183545 4125 911447791 4384 ...
output:
2999997514
result:
ok 1 number(s): "2999997514"
Test #35:
score: 0
Accepted
time: 494ms
memory: 359824kb
input:
2000000 35 863105455 513 617091843 1102 710534172 4347 227715846 4961 863805953 5307 68806776 6997 5...
output:
2999997958
result:
ok 1 number(s): "2999997958"
Test #36:
score: 0
Accepted
time: 540ms
memory: 359828kb
input:
2000000 335 51974424 513 624057311 824 935726152 883 899456965 1003 536665976 1343 480024689 1591 34...
output:
2999999056
result:
ok 1 number(s): "2999999056"
Test #37:
score: 0
Accepted
time: 540ms
memory: 359824kb
input:
2000000 1770 876700210 2618 855247437 3117 946298002 3623 950691406 3738 490183040 3968 499286660 41...
output:
2999999048
result:
ok 1 number(s): "2999999048"
Test #38:
score: 0
Accepted
time: 550ms
memory: 359824kb
input:
2000000 312 794196764 814 918957656 1234 187116918 1653 401089556 1997 308069650 2300 483401628 2569...
output:
2999996084
result:
ok 1 number(s): "2999996084"
Test #39:
score: 0
Accepted
time: 532ms
memory: 359824kb
input:
2000000 803 56665060 1243 812188749 1301 489626677 1417 469823961 2208 72225804 2461 304342571 2741 ...
output:
2999999633
result:
ok 1 number(s): "2999999633"
Test #40:
score: 0
Accepted
time: 542ms
memory: 359824kb
input:
2000000 57 298958028 102 487589263 2002 638371165 2064 113138699 2404 37758633 2581 829315955 2666 7...
output:
2999998829
result:
ok 1 number(s): "2999998829"
Test #41:
score: 0
Accepted
time: 529ms
memory: 359828kb
input:
2000000 1846 579002148 1966 487385702 2032 807841592 2751 213874398 4434 228199139 4446 413874427 46...
output:
2999998974
result:
ok 1 number(s): "2999998974"
Subtask #5:
score: 0
Wrong Answer
Test #42:
score: 30
Accepted
time: 530ms
memory: 359828kb
input:
2000000 684 624071334 1181 709831992 1397 43325781 1938 430417709 4157 60566309 4568 912818933 5265 ...
output:
2999999891
result:
ok 1 number(s): "2999999891"
Test #43:
score: 0
Accepted
time: 528ms
memory: 359828kb
input:
2000000 716 961296951 867 587008884 1188 120228907 1362 27242985 1810 872080678 2160 760439837 2603 ...
output:
2999998971
result:
ok 1 number(s): "2999998971"
Test #44:
score: 0
Accepted
time: 521ms
memory: 359824kb
input:
2000000 610 982311315 696 97431714 1316 776011105 2184 994549619 2525 408120441 3477 688756543 3731 ...
output:
2999999031
result:
ok 1 number(s): "2999999031"
Test #45:
score: 0
Accepted
time: 682ms
memory: 359828kb
input:
2000000 246 249824288 1101 244326831 1388 16146229 2009 935786174 2093 748943820 2887 268223777 3013...
output:
2999998952
result:
ok 1 number(s): "2999998952"
Test #46:
score: 0
Accepted
time: 558ms
memory: 359824kb
input:
2000000 161 731248865 172 541182670 183 231702648 2813 248068761 4771 715634312 5616 517828133 5818 ...
output:
2999998701
result:
ok 1 number(s): "2999998701"
Test #47:
score: 0
Accepted
time: 578ms
memory: 359828kb
input:
2000000 825 725030954 1168 381589380 1266 743004857 3740 960593802 3800 277083962 4337 912199250 455...
output:
2999998092
result:
ok 1 number(s): "2999998092"
Test #48:
score: 0
Accepted
time: 526ms
memory: 359824kb
input:
2000000 52 925930364 356 921007272 1299 130822844 2364 660000805 2482 830482938 4148 260844246 4202 ...
output:
2999999007
result:
ok 1 number(s): "2999999007"
Test #49:
score: 0
Accepted
time: 626ms
memory: 359828kb
input:
2000000 1015 396093150 1500 99095065 1604 176343132 1786 539231821 2102 977579393 2255 903370886 238...
output:
2999999413
result:
ok 1 number(s): "2999999413"
Test #50:
score: 0
Accepted
time: 517ms
memory: 359824kb
input:
2000000 1005 453769417 2405 934269622 2718 902248183 3039 177888423 3173 154278677 3757 665695953 39...
output:
2999999797
result:
ok 1 number(s): "2999999797"
Test #51:
score: 0
Accepted
time: 614ms
memory: 359824kb
input:
2000000 1209 723197158 1576 885725297 2560 979809874 2829 634878390 3139 728671424 3571 258053178 41...
output:
2999998345
result:
ok 1 number(s): "2999998345"
Test #52:
score: -30
Wrong Answer
time: 476ms
memory: 359824kb
input:
2000000 0 333333333 1 333333332 2 333333331 3 333333330 4 333333329 5 333333328 6 333333327 7 333333...
output:
1333333330
result:
wrong answer 1st numbers differ - expected: '890888886', found: '1333333330'