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QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#125368 | #6343. Bitaro's travel | piokemon | 0 | 115ms | 24652kb | C++14 | 2.9kb | 2023-07-16 16:21:05 | 2023-07-16 16:21:07 |
Judging History
answer
#include <bits/stdc++.h>
using namespace std;
typedef long long int ll;
constexpr int N = 2e5;
int a[N+9];
int d[N+9];
int maks[N+9][25];
int mnp(int l, int r){
int dlug = r-l+1;
int pot = 31-__builtin_clz(dlug);
return max(maks[l][pot],maks[r-(1<<pot)+1][pot]);
}
int main(){
ios_base::sync_with_stdio(0);
cin.tie(0);
cout.tie(0);
int n,q,b;
cin >> n;
a[0] = -1e9+9;
d[0] = 1e9+9;
for (int x=1;x<=n;x++){
cin >> a[x];
d[x] = a[x]-a[x-1];
}
a[n+1] = 2e9;
d[n+1] = 1e9+9;
for (int x=0;x<=n+1;x++){
maks[x][0] = d[x];
}
for (int k=1;k<19;k++){
for (int x=0;x<=n+1;x++){
maks[x][k] = max(maks[x][k-1],maks[min(n,x+(1<<k)-1)][k-1]);
}
}
cin >> q;
while(q--){
cin >> b;
int pocz,kon,srod;
pocz = 1;
kon = n;
while(pocz<kon){
srod = (pocz+kon+1)/2;
if (a[srod]<=b) pocz = srod;
else kon = srod-1;
}
int l,r,kier;
if (abs(b-a[pocz]) < abs(b-a[pocz+1])){
l = pocz;
r = pocz;
}
else{
l = pocz+1;
r = pocz+1;
}
if (abs(b-a[l-1]) < abs(b-a[l+1])){
kier = 0;
}
else{
kier = 1;
}
ll odp = abs(b-a[l]);
int poprz = l;
while(l>1 || r<n){
if (kier==0){
int aa = a[r+1]-a[l];
if (mnp(1,l) < aa){
odp += a[poprz] - a[1];
l = 1;
poprz = l;
kier = 1;
continue;
}
pocz = 1;
kon = l-1;
while(pocz<kon){
srod = (pocz+kon+1)/2;
if (mnp(srod,l) < aa) kon = srod-1;
else pocz = srod;
}
odp += a[poprz]-a[pocz];
l = pocz;
poprz = l;
if (a[l]-a[l-1] >= aa) kier = 1;
else kier = 0;
}
else{
int aa = a[r]-a[l-1];
if (mnp(r+1,n) < aa){
odp += a[n] - a[poprz];
r = n;
poprz = r;
kier = 0;
continue;
}
pocz = r+1;
kon = n;
while(pocz<kon){
srod = (pocz+kon)/2;
if (mnp(r+1,srod) < aa) pocz = srod+1;
else kon = srod;
}
odp += a[pocz]-a[poprz];
r = pocz;
poprz = r;
if (d[r+1] < aa) kier = 0;
else kier = 1;
}
}
cout << odp << '\n';
}
return 0;
}
Details
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Subtask #1:
score: 0
Wrong Answer
Test #1:
score: 0
Wrong Answer
time: 2ms
memory: 5764kb
input:
2000 154914587 154914588 154914591 154914592 154914594 154914596 154914598 154914599 154914601 154914603 154914608 154914610 154914612 154914615 154914618 154914619 154914621 154914622 154914626 154914627 154914631 154914633 154914636 154914638 154914640 154914641 154914642 154914644 154914645 15491...
output:
809906500
result:
wrong answer 1st numbers differ - expected: '809906250', found: '809906500'
Subtask #2:
score: 0
Skipped
Dependency #1:
0%
Subtask #3:
score: 0
Wrong Answer
Test #31:
score: 0
Wrong Answer
time: 115ms
memory: 24652kb
input:
200000 9 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181...
output:
200107 999999991 202154 254248 379455 330526 287218 381369 234174 265794 363817 251861 342292 260613 302587 268153 288534 281789 345769 233835 218270 379170 374828 287051 278199 332977 318943 224651 342952 259560 206246 231269 284009 371811 206238 382486 202443 242366 359464 243136 354417 232288 274...
result:
wrong answer 4th numbers differ - expected: '346046', found: '254248'
Subtask #4:
score: 0
Skipped
Dependency #1:
0%