Compilare: main.cpp: In function 'void prefix(char*, int*)': main.cpp:11:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 2; i <= strlen(A); i++){ ~~^~~~~~~~~~~~ main.cpp: In function 'void print(std::vector<int>, FILE*)': main.cpp:25:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < ans.size() && i < 1000; i++) ~~^~~~~~~~~~~~ main.cpp: In function 'void solve(char*, char*, int*, FILE*)': main.cpp:41:14: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(k == strlen(A) - 1){ ~~^~~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:56:30: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%s%s", A, B); ^