Compilare: user.cpp: In function ‘void solve()’: user.cpp:49:11: warning: unused variable ‘j’ [-Wunused-variable] int i,j,f1,f2; ^ user.cpp: In function ‘void afisare()’: user.cpp:79:9: warning: unused variable ‘i’ [-Wunused-variable] int i; ^ user.cpp: In function ‘void citire()’: user.cpp:36:27: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d%d",&n,&m); ^ user.cpp:39:51: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d%d%d",&v[i].x,&v[i].y,&v[i].c); ^ user.cpp:44:24: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d",&k); ^ user.cpp: In function ‘int main()’: user.cpp:95:42: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d%d%d",&a1,&a2,&a3); ^