Submission #135017

#	Time	Username	Problem	Language	Result	Execution time	Memory
135017		wilwxk	Split the sequence (APIO14_sequence)	C++14	Compilation error	0 ms	0 KiB

sequence

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

const int MAXN=1e5+5;
const ll INF=1e18;
ll dp[MAXN][205];
int opt[MAXN][205];
ll soma[MAXN];
ll v[MAXN];
int n, x;

struct reta {
	ll a, b, id;
};
vector<reta> st[300];

void init() {
	dp[0][0]=0; for(int i=1; i<=x; i++) dp[0][i]=-INF;
	for(int i=1; i<=n; i++) dp[i][0]=-INF;

}

int cmp(reta a, reta b, reta c) {
	double aa=(a.b-b.b); aa/=(b.a-a.a);
	double bb=(c.b-b.b); aa/=(b.a-c.a);
	if(aa==bb) return 0;
	if(aa<bb) return 1;
	return -1;
}

void update(int ind, int k) {
	
}
ll query(ll val) {

}

int main() {
	scanf("%d %d", &n, &x); x++;
	for(int i=1; i<=n; i++) scanf("%lld", &v[i]);
	for(int i=1; i<=n; i++) soma[i]=soma[i-1], soma[i]+=v[i];

	init();
	for(int i=1; i<=n; i++) {
		for(int j=1; j<=x; j++) {
			auto cur=query(soma[i], j-1);

			dp[i][j]=;
			opt[i][j]=;

			update(i, j);
			// printf("%d %d >> %lld // %d\n", i, j, dp[i][j], opt[i][j]);
		}
	}

	printf("%lld\n", dp[n][x]);
	vector<int> respf;
	int ind=n; int k=x;
	while(respf.size()<x-1) {
		respf.push_back(opt[ind][k]);
		ind=opt[ind][k--];
	}
	reverse(respf.begin(), respf.end());
	for(auto cur : respf) printf("%d ", cur);
}

Compilation message (stderr)

sequence.cpp: In function 'll query(ll)':
sequence.cpp:37:1: warning: no return statement in function returning non-void [-Wreturn-type]
 }
 ^
sequence.cpp: In function 'int main()':
sequence.cpp:47:31: error: too many arguments to function 'll query(ll)'
    auto cur=query(soma[i], j-1);
                               ^
sequence.cpp:35:4: note: declared here
 ll query(ll val) {
    ^~~~~
sequence.cpp:49:13: error: expected primary-expression before ';' token
    dp[i][j]=;
             ^
sequence.cpp:50:14: error: expected primary-expression before ';' token
    opt[i][j]=;
              ^
sequence.cpp:47:9: warning: unused variable 'cur' [-Wunused-variable]
    auto cur=query(soma[i], j-1);
         ^~~
sequence.cpp:60:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  while(respf.size()<x-1) {
        ~~~~~~~~~~~~^~~~
sequence.cpp:40:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d %d", &n, &x); x++;
  ~~~~~^~~~~~~~~~~~~~~~~
sequence.cpp:41:31: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  for(int i=1; i<=n; i++) scanf("%lld", &v[i]);
                          ~~~~~^~~~~~~~~~~~~~~