Compilare: main.cpp: In function 'int main()': main.cpp:43:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (j=0;j<diviz[v[i]].size();j++){ ~^~~~~~~~~~~~~~~~~~~ main.cpp:54:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (j=0;j<diviz[v[right]].size();j++){ ~^~~~~~~~~~~~~~~~~~~~~~~ main.cpp:63:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (k=0;k<diviz[v[right2]].size();k++){ ~^~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:75:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (j=0;j<diviz[v[right]].size();j++){ ~^~~~~~~~~~~~~~~~~~~~~~~ main.cpp:37:32: warning: ignoring return value of 'size_t fread(void*, size_t, size_t, FILE*)', declared with attribute warn_unused_result [-Wunused-result] fread (buff,1,30000000,fin); ^