Submission #157565

#	Time	Username	Problem	Language	Result	Execution time	Memory
157565		Doda	Elder (COCI19_elder)	C++14	20 / 50	2 ms	376 KiB

elder

#include <iostream>
 
using namespace std;
int x[95];
 
int main () {
char a,b,c;
int n;
cin >> a;
cin >> n;
x[(int) a] = 1;
c = a;
 
for (int i = 0; i<n ; i++){
	cin >> a >> b;
	if (b == c){
		c = a;
		if (x[(int)c]==0){
			x[(int)c]=1;
		}
	}
}
int m = 'A';
int d = 0;
for (int i = m; i<100;i++){
	if (x[(int)i] == 1){
		d++;
	}
}
 
 
cout << c << "\n";
cout << d-1;
return 0;
}

Compilation message (stderr)

elder.cpp: In function 'int main()':
elder.cpp:26:14: warning: iteration 30 invokes undefined behavior [-Waggressive-loop-optimizations]
  if (x[(int)i] == 1){
      ~~~~~~~~^
elder.cpp:25:18: note: within this loop
 for (int i = m; i<100;i++){
                 ~^~~~

• Subtask 1: 20 / 50