CSES - Datatähti 2024 alku - Results
Submission details
Task:Uolevin kalansaalis
Sender:Tipu
Submission time:2023-11-12 23:31:16 +0200
Language:C++ (C++11)
Status:COMPILE ERROR

Compiler report

input/code.cpp: In function 'll scan(ll, bool)':
input/code.cpp:114:20: error: no matching function for call to 'min(int&, ll&)'
  114 |             p = min(s,p);
      |                 ~~~^~~~~
In file included from /usr/include/c++/11/bits/char_traits.h:39,
                 from /usr/include/c++/11/ios:40,
                 from /usr/include/c++/11/istream:38,
                 from /usr/include/c++/11/sstream:38,
                 from /usr/include/c++/11/complex:45,
                 from /usr/include/c++/11/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:54,
                 from input/code.cpp:1:
/usr/include/c++/11/bits/stl_algobase.h:230:5: note: candidate: 'template<class _Tp> const _Tp& std::min(const _Tp&, const _Tp&)'
  230 |     min(const _Tp& __a, const _Tp& __b)
      |     ^~~
/usr/include/c++/11/bits/stl_algobase.h:230:5: note:   template argument deduction/substitution failed:
input/code.cpp:114:20: note:   deduced conflicting types...

Code

#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
struct Hex {
public:
ll l = 0;
ll r = 0;
};
const ll SIZE = 555;
ll n, m, k;
ll v[SIZE][SIZE];
ll v2[SIZE][SIZE];
Hex d[SIZE][SIZE];
ll count_l_colum(ll i, ll j, ll l){
bool add = (i % 2 == 0);
return (d[i][j].l - d[i-l][j - ll(ceil((l-add)/2.0))].l);
}
ll count_r_colum(ll i, ll j, ll l){
bool add = (i % 2 == 0);
return (d[i][j].r - d[i-l][j + ll(floor((l+add)/2.0))].r);
}
ll scan(ll p, bool skip1){
for (ll i = n; i > 1; i--) {
if(skip1 && (i == 1)){
break;
}
ll h = i - skip1;
ll j2 = 1;
ll j1 = 1;
ll l = 1;
ll ms = d[i][1].l - d[i-1][(i % 2 == 0)].l;
ll s = ms;
ll safety = 0;
while (j1 < m)
{
safety++;
// if(s == 0){
// cout << "HEI" << endl;
// }
// if(s == 1){
// cout << "I" << endl;
// }
p = min(s, p);
if(j2 < j1+h - 1 && j2 < m){
j2++;
ms += count_l_colum(i, j2, (j2-j1 + 1));
continue;
}
//else
if((ms - s) < 0){
l++;
s += count_l_colum(i, (j1+l-1), l);
continue;
}
//else
if((ms - s) >= 0 && j1 < j2 && l > 1){
s -= count_r_colum(i, j1, l);
ms -= count_r_colum(i, j1, (j2-j1 + 1));
j1++;
l--;
continue;
}
else if (j2 >= m){
break;
}
else
{
s -= count_r_colum(i, j1, l);
ms -= count_r_colum(i, j1, (j2-j1 + 1));
j1++;
j2++;
s += count_l_colum(i, (j1+l-1), l);
ms += count_l_colum(i, j2, (j2-j1 + 1));
continue;
}
}
// if(s == 0){
// cout << "MOI" << endl;
// }
// if(s == 1){
// cout << "J" << endl;
// }
p = min(s, p);
}
if(!skip1){
int s = 0;
for (int j = 1; j <= m; j++)
{
s = d[1][j].l;
p = min(s,p);
}
}
return p;
}
int main() {
// freopen("input.txt", "r", stdin);
cin >> n >> m >> k;
ll a, b;
char c;
ll os = 0;
for (ll i = 0; i < k; i++) {
cin >> a >> b >> c;
if(c == 'H'){
v[a][b] = 1;
os += 1;
}else{
v[a][b] = -10;
os -= 10;
}
}
for (ll i = 1; i <= n; i++) {
for (ll j = 1; j <= m; j++) {
bool add = 0;
if(i % 2 == 0){
add = 1;
}
d[i][j].l = v[i][j] + d[i-1][j-1+add].l;
d[i][j].r = v[i][j] + d[i-1][j+add].r;
}
}
// for (ll i = 1; i <= n; i++) {
// for (ll j = 1; j <= m; j++) {
// cout << "(" << d[i][j].l << " ; " << d[i][j].r << ") " ;
// }
// cout << "\n";
// }
ll p = 1e9;
p = scan(p,false);
// cout << p << endl;
// cout << os << endl;
// assert(p >= os);
// cout << "\n\n";
bool fix = (n%2 == 0);
n = n + fix;
for (ll i = 1; i <= n; i++) {
for (ll j = 1; j <= m; j++) {
if(v[i][j] != 0){
v2[n+1-i][j] = v[i][j];
}
}
}
for (ll i = 1; i <= n; i++) {
for (ll j = 1; j <= m; j++) {
bool add = 0;
if(i % 2 == 0){
add = 1;
}
d[i][j].l = v2[i][j] + d[i-1][j-1+add].l;
d[i][j].r = v2[i][j] + d[i-1][j+add].r;
}
}
// for (ll i = 1; i <= n; i++) {
// for (ll j = 1; j <= m; j++) {
// cout << "(" << d[i][j].l << " ; " << d[i][j].r << ") " ;
// }
// cout << "\n";
// }
p = min(scan(p, fix), p);
// assert((n <= 5 && m <= 5));
// assert(p != 1e9);
cout << os - p;
}