Submission #667539

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
667539	2022-12-01 17:07:18	berr	Fancy Fence (CEOI20_fancyfence)	C++17	100 / 100	278 ms	7508 KiB

fancyfence

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#include <bits/stdc++.h>
using namespace std;
#define int long long
const int N=1e5+37;
int p[N], vis[N], length[N];
int sum, ans=0, mod=1e9+7;
int s(int x, int y){
    return ((x+y)%mod+mod)%mod;
}
int mul(int x, int y){
    return (x*y)%mod;
}
int poww(int x, int y){
    if(y==0) return 1;
    int tmp=poww(x, y/2);
    if(y&1) return mul(tmp, mul(tmp, x));
    return mul(tmp, tmp);
}
int val(int x){
    return mul(mul(x, (x+1)), poww(2, mod-2));
}
int find(int x){
    return (p[x]!=x)?p[x]=find(p[x]):x;
 
 
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Compilation message (stderr)

fancyfence.cpp: In function 'int main()':
fancyfence.cpp:71:19: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<std::array<long long int, 3> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   71 |     for(int i=0; i<a.size()-1; i++)
      |                  ~^~~~~~~~~~~
fancyfence.cpp:73:24: warning: unused variable 'len' [-Wunused-variable]
   73 |         int p=a[i][2], len=a[i][1], h=a[i][0];
      |                        ^~~

• Subtask 1: 0 / 0
• Subtask 2: 12 / 12
• Subtask 3: 13 / 13
• Subtask 4: 15 / 15
• Subtask 5: 15 / 15
• Subtask 6: 18 / 18
• Subtask 7: 27 / 27