Compilare: main.cpp: In function 'void solve()': main.cpp:61:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j=0;j<pozfin[i].size();j++){ ~^~~~~~~~~~~~~~~~~ main.cpp:30:22: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d",&n); ^ main.cpp:32:27: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d",&v[i]); ^ main.cpp: In function 'int main()': main.cpp:73:24: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d",&t); ^