Submission #625883

#	Time	Username	Problem	Language	Result	Execution time	Memory
625883		as111	Carnival (CEOI14_carnival)	C++14	Compilation error	0 ms	0 KiB

carnival

#include <iostream>
#include <vector>
using namespace std;
 
vector<int> pos;
int num[155], col[155], C;
 
int main()
{
	int N; cin >> N;
	for (int i=1;i<N;i++){
		cout << N-i+1;
		for (int j=i;j<=N;j++) cout << " " << j;
      	cout << endl;
      cin >> (cost[i]);
	}
	num[N] = 1;
 
	for (int i=1;i<=N;i++) if (num[i] != num[i+1]){
		col[i] = ++C;
		pos.push_back(i);
	}
 
	for (int i=1;i<=N;i++) if (!col[i]){
		while (pos[0] < i) pos.erase(pos.begin());
		int l = 0, r = pos.size(), a = pos.size();
		while (l + 1 < r){
			int m = (l + r) / 2;
			int s = pos.size() - m + 1;
			printf ("%d",s);
			for (int i=m;i<pos.size();i++) printf (" %d",pos[i]);
			printf (" %d\n",i); fflush(stdout);
 
			int c; scanf ("%d",&c);
			if (c == s) r = m;
			else l = m;
		}
		col[i] = col[pos[l]];
	}
 
	printf ("0");
	for (int i=1;i<=N;i++) printf (" %d",col[i]); puts(""); fflush(stdout);
 
	return 0;
}

Compilation message (stderr)

carnival.cpp: In function 'int main()':
carnival.cpp:15:15: error: 'cost' was not declared in this scope
   15 |       cin >> (cost[i]);
      |               ^~~~
carnival.cpp:31:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   31 |    for (int i=m;i<pos.size();i++) printf (" %d",pos[i]);
      |                 ~^~~~~~~~~~~
carnival.cpp:26:30: warning: unused variable 'a' [-Wunused-variable]
   26 |   int l = 0, r = pos.size(), a = pos.size();
      |                              ^
carnival.cpp:42:2: warning: this 'for' clause does not guard... [-Wmisleading-indentation]
   42 |  for (int i=1;i<=N;i++) printf (" %d",col[i]); puts(""); fflush(stdout);
      |  ^~~
carnival.cpp:42:48: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'for'
   42 |  for (int i=1;i<=N;i++) printf (" %d",col[i]); puts(""); fflush(stdout);
      |                                                ^~~~
carnival.cpp:34:17: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   34 |    int c; scanf ("%d",&c);
      |           ~~~~~~^~~~~~~~~