Compilare: main.cpp: In function 'int main()': main.cpp:26:25: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while(st + lmax - 1 < text.length()) ~~~~~~~~~~~~~~^~~~~~~~~~~~~~~ main.cpp:29:9: warning: this 'if' clause does not guard... [-Wmisleading-indentation] if(umap[str1] != 0) ^~ main.cpp:31:13: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'if' st++; ^~ main.cpp:25:24: warning: unused variable 'dr' [-Wunused-variable] int c = 0, st = 0, dr = lmax - 1; ^~ main.cpp:26:21: warning: 'lmax' may be used uninitialized in this function [-Wmaybe-uninitialized] while(st + lmax - 1 < text.length()) ~~~~~~~~~~^~~