Compilare: main.cpp: In function 'int cautblin(int, int)': main.cpp:39:14: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(pas+p2<lin[l].size() && lin[l][pas+p2]<=val) ~~~~~~^~~~~~~~~~~~~~ main.cpp: In function 'int cautbcol(int, int)': main.cpp:50:14: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(pas+p2<col[c].size() && col[c][pas+p2]<=val) ~~~~~~^~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:86:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=1;i<itr.second.size();i++){ ~^~~~~~~~~~~~~~~~~~ main.cpp:102:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=1;i<itr.second.size();i++){ ~^~~~~~~~~~~~~~~~~~ main.cpp:76:29: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d%d",&n,&m); ^ main.cpp:78:32: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d %d",&x,&y); ^ main.cpp:118:35: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(fin," %c%d",&c,&dist); ^