Compilare: main.cpp: In function 'void radixSort()': main.cpp:31:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i = 0; i < v.size(); ++i) ~~^~~~~~~~~~ main.cpp:42:30: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j = 0; j < g[i].size(); ++j) ~~^~~~~~~~~~~~~ main.cpp: In function 'void writeArray()': main.cpp:52:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < v.size(); i += 10) ~~^~~~~~~~~~ main.cpp: In function 'void readArray()': main.cpp:14:42: 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); ^