문제 링크 https://www.acmicpc.net/problem/2508
차근차근
for _ in range(test_case):
input()
r, c = map(int, input().split())
box = []
for i in range(r):
box.append(input())
count = 0
for y in range(r):
for x in range(c):
if box[y][x] == '>' and x < c-2 and box[y][x+1] == 'o' and box[y][x+2] == '<':
count += 1
elif box[y][x] == 'v' and y < r-2 and box[y+1][x] == 'o' and box[y+2][x] == '^':
count += 1
print(count)