Compilare: main.cpp: In function 'void radixsort(int, int, int)': main.cpp:18:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for ( i = 0; i < v0.size(); i++ ) ~~^~~~~~~~~~~ main.cpp:20:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for ( i = 0; i < v1.size(); i++ ) ~~^~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:36:44: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf( fin, "%d%d%d%d", &n, &a, &b, &c ); ^