Submission #1186

#	Time	Username	Problem	Language	Result	Execution time	Memory
1186		gs13068	탐사 (KOI13_probe)	C++98	14.63 / 19	2057 ms	376 KiB

probe

#include<cstdio>
#include<cstdlib>

bool ans[41];
int max[41];
int min[41];
int a[1000];
int b[1000];
int c[1000];
int n,m;

inline bool check()
{
	int i;
	for(i=0;i<m;i++)
	{
		if(max[b[i]]-max[a[i]-1]<c[i])return false;
		if(min[b[i]]-min[a[i]-1]>c[i])return false;
	}
	return true;
}

inline void backtracking(int x)
{
	int i;
	if(x>n)
	{
		for(i=1;i<=n;i++)printf(ans[i]?"#":"-");
		exit(0);
	}
	ans[x]=false;
	for(i=x;i<=n;i++)max[i]--;
	if(check())backtracking(x+1);
	ans[x]=true;
	for(i=x;i<=n;i++){min[i]++;max[i]++;}
	if(check())backtracking(x+1);
	for(i=x;i<=n;i++)min[i]--;
}

int main()
{
	int i;
	scanf("%d%d",&n,&m);
	for(i=1;i<=n;i++)max[i]=i;
	for(i=0;i<m;i++)scanf("%d%d%d",&a[i],&b[i],&c[i]);
	backtracking(1);
	puts("NONE");
}

Compilation message (stderr)

probe.cpp: In function 'int main()':
probe.cpp:43:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d%d",&n,&m);
  ~~~~~^~~~~~~~~~~~~~
probe.cpp:45:23: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  for(i=0;i<m;i++)scanf("%d%d%d",&a[i],&b[i],&c[i]);
                  ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 2.47 / 2.47
• Subtask 2: 2.09 / 2.09
• Subtask 3: 1.33 / 1.33
• Subtask 4: 5.13 / 5.13
• Subtask 5: 3.61 / 3.61
• Subtask 6: 0 / 4.37