Submission #162784

#	Time	Username	Problem	Language	Result	Execution time	Memory
162784		44442	Lun (COCI19_lun)	C++11	50 / 50	2 ms	376 KiB

lun

#include <bits/stdc++.h>
using namespace std;
int n,o,b,z[104],c,d,g,e,f;
char a[104];
int main (){
ios::sync_with_stdio(0);
     scanf("%d\n",&n);
     for(int i=n;i>0;i--){
         scanf("%c",&a[i]);
     	 if(a[i]==120){
     	     z[i]=1;
     	     o=i;
     	 }
	 }
	 for(int i=2;i<n+1;i=i+2){
	 	 if(!z[i]){
	 	 	 g=2*a[i]-96;
	 	 	 if(g>9)
	 	 	     g=g%10+1;
	 	     b=b+g;
	 	 }
	 }
	 for(int i=3;i<n+1;i=i+2){
	 	 if(!z[i])
	 	     b=b+a[i]-48;
	 }
	 if(o!=1){
		 c=b%10;
		 d=10-((a[1]-48)%10);
		 if(d>=c)
		     e=d-c;
		 else 
		     e=10-(c-d);
		 if(!(o%2)){
		     if(!(e%2))
		         printf("%d",e/2);
		     else
		         printf("%d", (e+9)/2);
		 }
		 else
		     printf("%d",e);
	 }
	 
	 else 		 
	     cout<<(b*9)%10;
return 0;
}

Compilation message (stderr)

lun.cpp: In function 'int main()':
lun.cpp:7:11: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
      scanf("%d\n",&n);
      ~~~~~^~~~~~~~~~~
lun.cpp:9:15: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
          scanf("%c",&a[i]);
          ~~~~~^~~~~~~~~~~~

• Subtask 1: 50 / 50