Compilare: user.cpp: In function ‘int main()’: user.cpp:11:28: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d %d",&s,&d); ^ user.cpp:17:9: warning: assuming signed overflow does not occur when assuming that (X - c) > X is always false [-Wstrict-overflow] for( j=2;j<co;j++) ^ user.cpp:41:33: warning: ‘a’ may be used uninitialized in this function [-Wmaybe-uninitialized] fprintf(g,"%d %d %d",a,max,c); ^ user.cpp:40:8: warning: ‘c’ may be used uninitialized in this function [-Wmaybe-uninitialized] c--; ^