0_0_8258929_9452.cpp: In function `void backtrack(int)':
0_0_8258929_9452.cpp:21: error: `count' undeclared (first use this function)
0_0_8258929_9452.cpp:21: error: (Each undeclared identifier is reported only once for each function it appears in.)
0_0_8258929_9452.cpp: In function `int main()':
0_0_8258929_9452.cpp:38: error: `count' undeclared (first use this function)
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