0_0_36485207_1416.cpp: In function 'bool dfs1(int, int)':
0_0_36485207_1416.cpp:9:17: error: 'dfs' was not declared in this scope
if(dfs(x+1,y)){
^
0_0_36485207_1416.cpp:13:17: error: 'dfs' was not declared in this scope
if(dfs(x,y+1)){
^
0_0_36485207_1416.cpp: In function 'bool dfs2(int, int)':
0_0_36485207_1416.cpp:22:17: error: 'dfs' was not declared in this scope
if(dfs(x+1,y)){
^
0_0_36485207_1416.cpp:26:17: error: 'dfs' was not declared in this scope
if(dfs(x,y+1)){
^
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