0_0_20663266_23791.cpp: In function 'int binary_search(int)':
0_0_20663266_23791.cpp:18:12: error: 'b' was not declared in this scope
if(b[m] > x) r = m;
^
0_0_20663266_23791.cpp: In function 'bool lis(int*)':
0_0_20663266_23791.cpp:30:9: error: 'b' was not declared in this scope
b[idx] = arr[i];
^
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