0_0_9127234_11478.cpp: In function `void solve(char*, int)':
0_0_9127234_11478.cpp:110: error: `strrev' undeclared (first use this function)
0_0_9127234_11478.cpp:110: error: (Each undeclared identifier is reported only once for each function it appears in.)
0_0_9127234_11478.cpp: In function `int main()':
0_0_9127234_11478.cpp:139: error: `strrev' undeclared (first use this function)
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