Submission #993082

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Source Code Expand

#include <cstdio>
#include <algorithm>
#include <vector>
#include <stack>
#include <queue>
#include <set>
#include <map>
#include <cstring>
#include <string>
#include <cmath>
#include <cstdlib>
#include <iostream>

using namespace std;

#define MOD @
#define ADD(X,Y) ((X) = ((X) + (Y)) % MOD)
typedef long long i64; typedef vector<int> ivec; typedef vector<string> svec;

int N, A[202020], M, X[202020];
i64 dp[202020];
i64 S[202020];

i64 solve()
{
	S[0] = 0;
	for (int i = 1; i <= N; ++i) S[i] = S[i - 1] + A[i - 1];
	dp[N - 1] = 0;
	i64 acc = A[N - 1] - dp[N - 1] - S[N - 1];
	for (int i = N - 2; i >= 1; --i) {
		dp[i] = acc + S[i + 1];
		acc = max(acc, A[i] - dp[i] - S[i]);
	}
	return dp[1] + A[0] - A[1];
}

int main()
{
	scanf("%d", &N);
	for (int i = 0; i < N - 1; ++i) scanf("%d", A + i);
	scanf("%d", &M);
	for (int i = 0; i < M; ++i) scanf("%d", X + i);

	if (M > 1) return 0;
	for (int i = 0; i < M; ++i) {
		A[N - 1] = X[i];
		printf("%lld\n", solve());
	}
	return 0;
}

Submission Info

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:39:17: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d", &N);
                 ^
./Main.cpp:40:52: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
  for (int i = 0; i < N - 1; ++i) scanf("%d", A + i);
                                                    ^
./Main.cpp:41:17: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d", &M);
                 ^
./Main.cpp:42:48: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
  for (int i = 0; i < M; ++i) scanf("%d", X + i);
                                                ^

Judge Result