Submission #2673138

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Source Code Expand

#include <bits/stdc++.h>
using namespace std;

const int MAXN = 100005;

char str[MAXN];

int main()
{
	scanf("%s", str+1);
	long long ans = 0;
	for (int i = 1; i <= n; i++) {
		if (str[i] == 'U') ans += 2*(i-1)+(n-i);
		else ans += 2*(n-i)+(i-1);
	}
	cout << ans << endl;
	return 0;
}

Submission Info

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:12:23: error: ‘n’ was not declared in this scope
  for (int i = 1; i <= n; i++) {
                       ^
./Main.cpp:10:20: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
  scanf("%s", str+1);
                    ^