CSES - Datatähti 2025 alku - Results
Submission details
Task:Robotti
Sender:PMak
Submission time:2024-10-28 01:04:54 +0200
Language:C++ (C++17)
Status:READY
Result:100
Feedback
groupverdictscore
#1ACCEPTED30
#2ACCEPTED70
Test results
testverdicttimegroup
#1ACCEPTED0.01 s1, 2details
#2ACCEPTED0.01 s1, 2details
#3ACCEPTED0.01 s1, 2details
#4ACCEPTED0.01 s1, 2details
#5ACCEPTED0.01 s1, 2details
#6ACCEPTED0.01 s1, 2details
#7ACCEPTED0.01 s1, 2details
#8ACCEPTED0.01 s1, 2details
#9ACCEPTED0.01 s1, 2details
#10ACCEPTED0.01 s1, 2details
#11ACCEPTED0.01 s1, 2details
#12ACCEPTED0.01 s2details
#13ACCEPTED0.01 s2details
#14ACCEPTED0.01 s2details
#15ACCEPTED0.01 s2details
#16ACCEPTED0.01 s2details
#17ACCEPTED0.01 s2details
#18ACCEPTED0.01 s2details
#19ACCEPTED0.05 s2details
#20ACCEPTED0.06 s2details
#21ACCEPTED0.01 s2details
#22ACCEPTED0.01 s2details
#23ACCEPTED0.10 s2details
#24ACCEPTED0.10 s2details

Compiler report

input/code.cpp:22:19: warning: use of 'auto' in parameter declaration only available with '-std=c++20' or '-fconcepts'
   22 | void print(vector<auto> v) {
      |                   ^~~~
input/code.cpp: In function 'int main()':
input/code.cpp:47:9: warning: variable 'r' set but not used [-Wunused-but-set-variable]
   47 |     int r=0, pos = 0, len = s.length();
      |         ^

Code

#include <bits/stdc++.h>
#define F0R(n) for (int i=0; i<n; i++)
#define FOR(from, to) for (int i = from; i < to; i++)
#define R0F(n) for (int i = n; i>=0; --i)
#define ROF(from, to) for (int i = from; i >= to; --i)
#define ll long long
#define mod (int) (1e9 + 7)
#define vi vector<int>
#define vll vector<ll>
#define vc vector<char>
#define pii pair<int, int>
#define pci pair<char, int>
#define pll pair<ll, ll>
#define YES cout << "YES\n";
#define NO cout << "NO\n";
#define all(x) x.begin(), x.end()
#define rall(x) x.rbegin(), x.rend()
using namespace std;
void print(vector<auto> v) {
for (auto it = v.begin(); it != v.end(); ++it)
cout << *it << " ";
cout << "\n";
}
vector<vi> adj(int(1e5+1), vi());
vi vis(int(1e5+1));
void soln() {
int n;
cin >> n;
}
int main() {
ios_base::sync_with_stdio(false);
cin.tie(NULL);
int n;
cin >> n;
string s;
cin >> s;
set<int> coin_pos;
int r=0, pos = 0, len = s.length();
F0R (len) {
if (s[i] == '*')
coin_pos.insert(i);
else if (s[i] == 'R') {
coin_pos.insert(i);
r = coin_pos.size()-1;
pos = i;
}
}
int steps = 0, coins = 0;
bool run_loop = true;
if (coin_pos.size() == 1)
run_loop = false;
else if (coin_pos.size() == 2) {
run_loop = false;
steps = abs(*coin_pos.begin()-*coin_pos.rbegin());
coins = 1;
}
int d1 =1e6, d2 = 1e6;
while (run_loop) {
d1 = 1e6; d2 = 1e6;
if (coin_pos.size() == 1)
break;
auto it1 = coin_pos.lower_bound(pos);
if (it1 != coin_pos.begin()) {
d1 = abs(pos-*--it1);
}
auto it2 = coin_pos.upper_bound(pos);
if (it2 != coin_pos.end()) {
d2 = abs(pos-*it2);
}
if (d1 == d2)
break;
else if (d1 < d2) {
++coins;
steps += d1;
coin_pos.erase(pos);
pos = *it1;
}
else {
coins += 1;
steps += d2;
coin_pos.erase(pos);
pos = *it2;
}
}
cout << steps << " " << coins;
return 0;
}

Test details

Test 1

Group: 1, 2

Verdict: ACCEPTED

input
1
R

correct output
0 0

user output
0 0

Test 2

Group: 1, 2

Verdict: ACCEPTED

input
10
...R......

correct output
0 0

user output
0 0

Test 3

Group: 1, 2

Verdict: ACCEPTED

input
10
**.R...***

correct output
12 5

user output
12 5

Test 4

Group: 1, 2

Verdict: ACCEPTED

input
10
***R******

correct output
0 0

user output
0 0

Test 5

Group: 1, 2

Verdict: ACCEPTED

input
1000
R................................

correct output
947 9

user output
947 9

Test 6

Group: 1, 2

Verdict: ACCEPTED

input
1000
.................................

correct output
886 9

user output
886 9

Test 7

Group: 1, 2

Verdict: ACCEPTED

input
1000
.....*..*....**..**..*......*....

correct output
1287 400

user output
1287 400

Test 8

Group: 1, 2

Verdict: ACCEPTED

input
1000
************.*****************...

correct output
0 0

user output
0 0

Test 9

Group: 1, 2

Verdict: ACCEPTED

input
1000
******************************...

correct output
0 0

user output
0 0

Test 10

Group: 1, 2

Verdict: ACCEPTED

input
1000
R*****************************...

correct output
999 999

user output
999 999

Test 11

Group: 1, 2

Verdict: ACCEPTED

input
1000
******************************...

correct output
999 999

user output
999 999

Test 12

Group: 2

Verdict: ACCEPTED

input
10000
.......**........*...........*...

correct output
10971 999

user output
10971 999

Test 13

Group: 2

Verdict: ACCEPTED

input
10000
*..*....*......*.....*..*........

correct output
9999 999

user output
9999 999

Test 14

Group: 2

Verdict: ACCEPTED

input
10000
*.*.*...**.*...*....**.**.**.....

correct output
18766 5000

user output
18766 5000

Test 15

Group: 2

Verdict: ACCEPTED

input
10000
R*****************************...

correct output
9999 9999

user output
9999 9999

Test 16

Group: 2

Verdict: ACCEPTED

input
10000
******************************...

correct output
9999 9999

user output
9999 9999

Test 17

Group: 2

Verdict: ACCEPTED

input
200000
.................................

correct output
0 0

user output
0 0

Test 18

Group: 2

Verdict: ACCEPTED

input
200000
.................................

correct output
299934 10000

user output
299934 10000

Test 19

Group: 2

Verdict: ACCEPTED

input
200000
**.***....**..**.....***.*..*....

correct output
299998 100000

user output
299998 100000

Test 20

Group: 2

Verdict: ACCEPTED

input
200000
******************************...

correct output
0 0

user output
0 0

Test 21

Group: 2

Verdict: ACCEPTED

input
200000
R................................

correct output
133765 3

user output
133765 3

Test 22

Group: 2

Verdict: ACCEPTED

input
200000
R................................

correct output
199982 5000

user output
199982 5000

Test 23

Group: 2

Verdict: ACCEPTED

input
200000
R*****************************...

correct output
199999 199999

user output
199999 199999

Test 24

Group: 2

Verdict: ACCEPTED

input
200000
******************************...

correct output
199999 199999

user output
199999 199999