Compilare: user.cpp: In function ‘int main()’: user.cpp:19:28: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f1,"%d%d",&n,&m); ^ user.cpp:21:69: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f1,"%d%d%d",&muchii[i].n1,&muchii[i].n2,&muchii[i].c); ^ user.cpp:34:19: warning: array subscript is above array bounds [-Warray-bounds] sol[nrsol][2]=muchii[j].n2; ^ user.cpp:51:49: warning: array subscript is above array bounds [-Warray-bounds] fprintf(f2,"%d %d\n",sol[i][1],sol[i][2]); ^