#include<bits/stdc++.h> using namespace std; int main(){ int n,a[110],sum=0; cin>>n; for(int i=1;i<=n;i++){ cin>>a[i]; int w,x,y,z; w=a[i]%10; x=(a[i]%100-w)/10; y=(a[i]%1000-w-10x)/100; z=a[i]/1000; if(w-x-y-z>0) sum++; } cout<<sum<<endl; return 0; }```cpp #include<bits/stdc++.h> using namespace std; int main(){ int n,a[110],sum=0; cin>>n; for(int i=1;i<=n;i++){ cin>>a[i]; int w,x,y,z; w=a[i]%10; x=(a[i]%100-w)/10; y=(a[i]%1000-w-10x)/100; z=a[i]/1000; if(w-x-y-z>0) sum++; } cout<<sum<<endl; return 0; }