| # |
Submission time |
Handle |
Problem |
Language |
Result |
Execution time |
Memory |
| 94971 |
2019-01-26T09:12:01 Z |
psmao |
Stove (JOI18_stove) |
C++14 |
|
2 ms |
256 KB |
#include <bits/stdc++.h>
using namespace std;
#define fo(i,s,t) for(int i = s; i <= t; ++ i)
#define fd(i,s,t) for(int i = s; i >= t; -- i)
#define bf(i,s) for(int i = head[s]; i; i = e[i].next)
#define mp make_pair
#define fi first
#define se second
#define pii pair<int,int>
#define pb push_back
#define VI vector<int>
#define sf scanf
#define pf printf
#define fp freopen
#define SZ(x) ((int)(x).size())
#ifdef MPS
#define D(x...) printf(x)
#else
#define D(x...)
#endif
typedef long long ll;
typedef double db;
typedef unsigned long long ull;
const int inf = 1<<30;
const ll INF = 1ll<<60;
const db Inf = 1e20;
const db eps = 1e-9;
void gmax(int &a,int b){a = (a > b ? a : b);}
void gmin(int &a,int b){a = (a < b ? a : b);}
const int maxn = 100050;
int n, K, T[maxn];
bool jud(int x)
{
int tmp = K - 1, last = 0;
fo(i,2,n)
{
if(T[i] - T[last+1] + 1 > x)
{
last = i - 1;
-- tmp;
if(tmp < 0) return false;
}
}
return true;
}
int calc(int x)
{
int last = 0, ans = 0;
fo(i,2,n)
{
if(T[i] - T[last+1] + 1 > x)
{
ans += T[i-1] - T[last+1] + 1;
last = i-1;
}
}
ans += T[n] - T[last+1] + 1;
return ans;
}
int main()
{
#ifdef MPS
fp("1.in","r",stdin);
fp("1.out","w",stdout);
#endif
sf("%d%d",&n,&K);
fo(i,1,n) sf("%d",&T[i]);
int lo = 1, hi = 1000000000, mid, pos;
while(lo <= hi)
{
mid = lo + hi >> 1;
if(jud(mid)) pos = mid, hi = mid - 1;
else lo = mid + 1;
}
pf("%d\n",calc(pos));
return 0;
}
Compilation message
stove.cpp: In function 'int main()':
stove.cpp:76:12: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
mid = lo + hi >> 1;
~~~^~~~
stove.cpp:71:4: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
sf("%d%d",&n,&K);
^
stove.cpp:72:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
fo(i,1,n) sf("%d",&T[i]);
^
stove.cpp:80:4: warning: 'pos' may be used uninitialized in this function [-Wmaybe-uninitialized]
pf("%d\n",calc(pos));
^
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
2 ms |
256 KB |
Output is correct |
| 2 |
Incorrect |
2 ms |
256 KB |
Output isn't correct |
| 3 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
2 ms |
256 KB |
Output is correct |
| 2 |
Incorrect |
2 ms |
256 KB |
Output isn't correct |
| 3 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
2 ms |
256 KB |
Output is correct |
| 2 |
Incorrect |
2 ms |
256 KB |
Output isn't correct |
| 3 |
Halted |
0 ms |
0 KB |
- |
