Submission #157562

#	Time	Username	Problem	Language	Result	Execution time	Memory
157562		dcj	Elder (COCI19_elder)	C++14	0 / 50	2 ms	376 KiB

elder

#include <iostream>

using namespace std;


int main()
{
	char Z1, Z2, p;
	int N, br=1,u;
	cin >> p;
	cin >> N;
	int v[28];
	v[(int)p - 'A'] = 1;
	for (int i=1; i<=N;i++) {
		scanf("%c %c", Z1, Z2);
		if (Z2==p) {
			v[(int)Z1 - 'A']=1;
			p=Z1;
		}
	}
	for (int i=0;i<=26;i++) {
		if (v[i]==1)
			br++;
	}
	cout << p;
	cout << br;
	return 0;
}

Compilation message (stderr)

elder.cpp: In function 'int main()':
elder.cpp:15:24: warning: format '%c' expects argument of type 'char*', but argument 2 has type 'int' [-Wformat=]
   scanf("%c %c", Z1, Z2);
                        ^
elder.cpp:15:24: warning: format '%c' expects argument of type 'char*', but argument 3 has type 'int' [-Wformat=]
elder.cpp:9:14: warning: unused variable 'u' [-Wunused-variable]
  int N, br=1,u;
              ^
elder.cpp:15:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%c %c", Z1, Z2);
   ~~~~~^~~~~~~~~~~~~~~~~
elder.cpp:15:8: warning: 'Z2' may be used uninitialized in this function [-Wmaybe-uninitialized]
   scanf("%c %c", Z1, Z2);
   ~~~~~^~~~~~~~~~~~~~~~~
elder.cpp:15:8: warning: 'Z1' may be used uninitialized in this function [-Wmaybe-uninitialized]

• Subtask 1: 0 / 50