0_0_20521563_21424.cpp: In function 'int main()': 0_0_20521563_21424.cpp:50:7: error: 'x' was not declared in this scope dfs(x,y,count); ^ 0_0_20521563_21424.cpp:50:9: error: 'y' was not declared in this scope dfs(x,y,count); ^