Submission #1065409

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Source Code Expand

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

#define FOR(i,l,r) for(int i = (int) (l);i < (int) (r);i++)
#define ALL(x) x.begin(),x.end()
template<typename T> bool chmax(T& a,const T& b){ return a < b ? (a = b,true) : false; }
template<typename T> bool chmin(T& a,const T& b){ return b < a ? (a = b,true) : false; }
typedef long long ll;

int N;
ll A,B;

int main()
{
	scanf("%d%lld%lld",&N,&A,&B);
	vector<ll> X(N),diff(N - 1);
	FOR(i,0,N){
		scanf("%lld",&X [i]);
	}
	FOR(i,0,N - 1){
		diff [i] = X [i + 1] - X [i];
	}
	sort(ALL(diff),greater<ll>());

	ll sum = accumulate(ALL(diff),0ll) * A,ans = sum;
	FOR(i,0,N - 1){
		sum += B - diff [i] * A;
		chmin(ans,sum);
	}

	printf("%lld\n",ans);

	return 0;
}

Submission Info

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:15:30: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d%lld%lld",&N,&A,&B);
                              ^
./Main.cpp:18:23: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
   scanf("%lld",&X [i]);
                       ^

Judge Result