Submission #1127843
Source Code Expand
#include <bits/stdc++.h>
using namespace std;
const int MOD = 1000000007;
const int dh[] = {1, -1, 0, 0};
const int dw[] = {0, 0, 1, -1};
int H, W;
int a[1000][1000], memo[1000][1000];
int dfs(int h, int w) {
if (memo[h][w] != 0) return memo[h][w];
int res = 1;
for (int i = 0; i < 4; i++) {
int nh = h + dh[i], nw = w + dw[i];
if (nh < 0 || nh >= H || nw < 0 || nw >= W) continue;
if (a[h][w] <= a[nh][nw]) continue;
(res += dfs(nh, nw)) %= MOD;
}
memo[h][w] = res;
return res;
}
int main() {
scanf("%d %d", &H, &W);
for (int i = 0; i < H; i++) {
for (int j = 0; j < W; j++) {
scanf("%d", &a[i][j]);
}
}
int ans = 0;
for (int i = 0; i < H; i++) {
for (int j = 0; j < W; j++) {
(ans += dfs(i, j)) %= MOD;
}
}
printf("%d\n", ans);
return 0;
}
Submission Info
Submission Time |
|
Task |
D - 経路 |
User |
fine |
Language |
C++14 (GCC 5.4.1) |
Score |
100 |
Code Size |
823 Byte |
Status |
AC |
Exec Time |
151 ms |
Memory |
8064 KB |
Compile Error
./Main.cpp: In function ‘int main()’:
./Main.cpp:26:24: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
scanf("%d %d", &H, &W);
^
./Main.cpp:29:25: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
scanf("%d", &a[i][j]);
^
Judge Result
Set Name |
sample |
All |
Score / Max Score |
0 / 0 |
100 / 100 |
Status |
|
|
Set Name |
Test Cases |
sample |
sample01.txt, sample02.txt |
All |
00.txt, 01.txt, 02.txt, 03.txt, 04.txt, 05.txt, 06.txt, 07.txt, 08.txt, 09.txt, 10.txt, 11.txt, 12.txt, 13.txt, 14.txt, 15.txt, 16.txt, 17.txt, 18.txt, 19.txt, sample01.txt, sample02.txt, sample01.txt, sample02.txt |
Case Name |
Status |
Exec Time |
Memory |
00.txt |
AC |
106 ms |
8064 KB |
01.txt |
AC |
119 ms |
8064 KB |
02.txt |
AC |
95 ms |
8064 KB |
03.txt |
AC |
2 ms |
2304 KB |
04.txt |
AC |
2 ms |
2304 KB |
05.txt |
AC |
2 ms |
2304 KB |
06.txt |
AC |
2 ms |
2304 KB |
07.txt |
AC |
2 ms |
2304 KB |
08.txt |
AC |
2 ms |
2432 KB |
09.txt |
AC |
2 ms |
2304 KB |
10.txt |
AC |
2 ms |
4480 KB |
11.txt |
AC |
150 ms |
8064 KB |
12.txt |
AC |
150 ms |
8064 KB |
13.txt |
AC |
150 ms |
8064 KB |
14.txt |
AC |
150 ms |
8064 KB |
15.txt |
AC |
130 ms |
8064 KB |
16.txt |
AC |
151 ms |
8064 KB |
17.txt |
AC |
151 ms |
8064 KB |
18.txt |
AC |
103 ms |
8064 KB |
19.txt |
AC |
89 ms |
8064 KB |
sample01.txt |
AC |
2 ms |
2304 KB |
sample02.txt |
AC |
2 ms |
2304 KB |