47 lines
No EOL
1.1 KiB
Text
47 lines
No EOL
1.1 KiB
Text
int shortest_path(int[][] matrix, int w, int h) {
|
|
var dp = new int[][h];
|
|
for (var i = 0; i < h; i=i+1;) {
|
|
dp[i] = new int[w];
|
|
for (var j = 0; j < w; j=j+1;) {
|
|
dp[i][j] = 0;
|
|
}
|
|
}
|
|
return shortest_path_dp(matrix, dp, 0, 0, w, h);
|
|
}
|
|
|
|
int shortest_path_dp(int[][] matrix, int[][] dp, int i, int j, int w, int h) {
|
|
if (i >= w | j >= h) {
|
|
return 100;
|
|
}
|
|
if (i == w-1 & j == h-1) {
|
|
dp[i][j] = matrix[i][j];
|
|
return dp[i][j];
|
|
}
|
|
if (dp[i][j] != 0) {
|
|
return dp[i][j];
|
|
}
|
|
var go_down_val = shortest_path_dp(matrix, dp, i, j+1, w, h);
|
|
var go_right_val = shortest_path_dp(matrix, dp, i+1, j, w, h);
|
|
if (go_down_val < go_right_val) {
|
|
dp[i][j] = go_down_val + matrix[i][j];
|
|
} else {
|
|
dp[i][j] = go_right_val + matrix[i][j];
|
|
}
|
|
return dp[i][j];
|
|
}
|
|
|
|
int program(int argc, string[] argv) {
|
|
var matrix = new int[][5];
|
|
for (var i = 0; i < 5; i=i+1;) {
|
|
matrix[i] = new int[5];
|
|
}
|
|
for (var i = 0; i < 5; i=i+1;) {
|
|
for (var j = 0; j < 5; j=j+1;) {
|
|
matrix[i][j] = 2*(i+1) + (j+1);
|
|
}
|
|
}
|
|
matrix[0][4] = 50;
|
|
matrix[1][3] = 50;
|
|
matrix[2][2] = 50;
|
|
return shortest_path(matrix, 5, 5);
|
|
} |