Eroare de compilare: user.cpp: In function ‘long long int Comb(long long int, long long int)’: user.cpp:23:30: warning: unused variable ‘j’ [-Wunused-variable] long long i, result = 1, j = 1; ^ user.cpp: In function ‘int main()’: user.cpp:48:18: error: ‘strlen’ was not declared in this scope len = strlen(path); ^ user.cpp:45:26: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(file1, "%lld", &P); ^ user.cpp:46:26: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(file1, "%s", path); ^