Compilare: user.cpp: In function ‘int main()’: user.cpp:14:25: warning: format ‘%s’ expects argument of type ‘char*’, but argument 3 has type ‘char (*)[100001]’ [-Wformat=] fscanf (fin, "%s", &s1); ^ user.cpp:15:25: warning: format ‘%s’ expects argument of type ‘char*’, but argument 3 has type ‘char (*)[100001]’ [-Wformat=] fscanf (fin, "%s", &s2); ^ user.cpp:11:7: warning: variable ‘n1’ set but not used [-Wunused-but-set-variable] int n1, n2, i1, i2; ^~ user.cpp:14:26: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf (fin, "%s", &s1); ^ user.cpp:15:26: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf (fin, "%s", &s2); ^