Submission #998964

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Source Code Expand

#include<bits/stdc++.h>
#define INF 0x3f3f3f3f
#define INFL 0x3f3f3f3f3f3f3f3f
#define MOD 1000000007
#define EPS (1e-10)
#define rep(i,n)for(int i=0;i<n;i++)
using namespace std;
typedef long long ll;
typedef pair<int, int>P;

int main() {
	int n; scanf("%d", &n);
	int d = 1 << n;
	vector<int>v(d);
	rep(i, d)scanf("%d", &v[i]);
	while (v.size() > 1) {
		for (int i = 0; i < v.size(); i += 2) {
			if (v[i] < v[i + 1]) {
				v[i + 1] -= v[i];
				v[i] = -1;
			}
			else if (v[i] > v[i + 1]) {
				v[i] -= v[i + 1];
				v[i + 1] = -1;
			}
			else {
				v[i] = -1;
			}
		}
		v.erase(remove(v.begin(), v.end(), -1), v.end());
	}
	printf("%d\n", v[0]);
}

Submission Info

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:12:24: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
  int n; scanf("%d", &n);
                        ^
./Main.cpp:15:29: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
  rep(i, d)scanf("%d", &v[i]);
                             ^

Judge Result