#include "wombats.h"
#include <set>
#include <algorithm>
#include <cstring>
#include <vector>
using namespace std;
template <typename T>
using ve = vector<T>;
int r, c, at[9999], h[5000][200], v[5000][200];
int sum = 0;
int changes = 0;
int c_is_2_dp(int V1, int V2) {
static int dp[5001][2];
dp[0][V1] = 0;
dp[0][!V1] = h[0][0];
for (int i = 1; i < r; ++i) {
dp[i][0] = dp[i - 1][0] + v[i - 1][0];
dp[i][1] = dp[i - 1][1] + v[i - 1][1];
dp[i][0] = min(dp[i][0], dp[i][1] + h[i][0]);
dp[i][1] = min(dp[i][1], dp[i][0] + h[i][0]);
}
return dp[r - 1][V2];
}
void changeH(int P, int Q, int W) {
if (c <= 100) {
h[P][Q] = W;
}
++changes;
}
void changeV(int P, int Q, int W) {
if (c == 1) {
sum += W - at[P];
at[P] = W;
} else if (c <= 100) {
v[P][Q] = W;
}
++changes;
}
static int floyd[401][401];
void init(int R, int C, int H[5000][200], int V[5000][200]) {
r = R, c = C;
if (c == 1)
for (int i = 0; i < r; ++i) changeV(i, 0, V[i][0]);
else if (c == 2) {
for (int i = 0; i < r; ++i) {
if (i + 1 < r)
changeV(i, 0, V[i][0]), changeV(i, 1, V[i][1]);
changeH(i, 0, H[i][0]);
}
} else if (r <= 20 and c <= 20) {
auto id = [&](int p, int q) { return p * c + q; };
memset(floyd, 63, sizeof floyd);
for (int i = 0; i < r * c; ++i) floyd[i][i] = 0;
for (int i = 0; i + 1 < r; ++i) for (int j = 0; j < c; ++j) {
int u = id(i, j), v = id(i + 1, j);
floyd[u][v] = min(floyd[u][v], V[i][j]);
}
for (int i = 0 ; i < r; ++i) for (int j = 0; j + 1 < c; ++j) {
int u = id(i, j), v = id(i, j + 1);
floyd[u][v] = min(floyd[u][v], H[i][j]);
floyd[v][u] = min(floyd[v][u], H[i][j]);
}
for (int bruh=3;bruh--;)for(int i=0;i<r*c;++i)for(int j=0;j<r*c;++j)for(int k=0;k<r*c;++k)
floyd[i][j]=min(floyd[i][j],floyd[i][k]+floyd[k][j]);
} else if (r <= 100 and c <= 100) {
}
}
int escapes = 0;
int escape(int V1, int V2) {
if (c == 1)
return sum;
else if (c == 2)
return c_is_2_dp(V1, V2);
else if (r <= 20 and c <= 20 and 0 == changes)
return floyd[V1][c * (r - 1) + V2];
else if (r <= 100 and c <= 100 and ++escapes <= 100) {
set<tuple<int, int, int>> hp;
static int dp[101][101];
memset(dp, 63, sizeof dp);
hp.emplace(0, 0, V1);
while (hp.size()) {
auto [cst, y, x] = *hp.begin();
if (y == r - 1 and x == V2)
return cst;
auto nq = [&](int ww, int ny, int nx) {
if (dp[ny][nx] > cst + ww) {
hp.erase({dp[ny][nx], ny, nx});
dp[ny][nx] = cst + ww;
hp.emplace(dp[ny][nx], ny, nx});
}
};
if (x + 1 < c) nq(h[y][x], y, x + 1);
if (y + 1 < r) nq(v[y][x], y + 1, x);
if (x) nq(h[y][x - 1], y, x - 1);
}
}
__builtin_trap();
}
Compilation message
grader.c: In function 'int main()':
grader.c:15:6: warning: variable 'res' set but not used [-Wunused-but-set-variable]
15 | int res;
| ^~~
wombats.cpp: In lambda function:
wombats.cpp:102:35: error: expected ')' before '}' token
102 | hp.emplace(dp[ny][nx], ny, nx});
| ~ ^
| )
wombats.cpp:102:36: error: expected primary-expression before ')' token
102 | hp.emplace(dp[ny][nx], ny, nx});
| ^
wombats.cpp: In function 'int escape(int, int)':
wombats.cpp:104:4: error: expected ',' or ';' before '}' token
104 | };
| ^
wombats.cpp:105:8: error: 'x' was not declared in this scope
105 | if (x + 1 < c) nq(h[y][x], y, x + 1);
| ^
wombats.cpp:105:24: error: 'y' was not declared in this scope
105 | if (x + 1 < c) nq(h[y][x], y, x + 1);
| ^
wombats.cpp:105:19: error: 'nq' was not declared in this scope
105 | if (x + 1 < c) nq(h[y][x], y, x + 1);
| ^~
wombats.cpp:106:8: error: 'y' was not declared in this scope
106 | if (y + 1 < r) nq(v[y][x], y + 1, x);
| ^
wombats.cpp:106:27: error: 'x' was not declared in this scope
106 | if (y + 1 < r) nq(v[y][x], y + 1, x);
| ^
wombats.cpp:106:19: error: 'nq' was not declared in this scope
106 | if (y + 1 < r) nq(v[y][x], y + 1, x);
| ^~
wombats.cpp:107:8: error: 'x' was not declared in this scope
107 | if (x) nq(h[y][x - 1], y, x - 1);
| ^
wombats.cpp:107:16: error: 'y' was not declared in this scope
107 | if (x) nq(h[y][x - 1], y, x - 1);
| ^
wombats.cpp:107:11: error: 'nq' was not declared in this scope
107 | if (x) nq(h[y][x - 1], y, x - 1);
| ^~
wombats.cpp: At global scope:
wombats.cpp:111:18: error: expected constructor, destructor, or type conversion before ';' token
111 | __builtin_trap();
| ^
wombats.cpp:113:1: error: expected declaration before '}' token
113 | }
| ^
wombats.cpp: In function 'int escape(int, int)':
wombats.cpp:109:2: warning: control reaches end of non-void function [-Wreturn-type]
109 | }
| ^
