2021-06-30 08:21:39
Juspay Solutions:
@placementupdatess
--1st
def traverse(graph, visited, curr, path, stack, n):
if curr==n-1:
path.append(stack.copy())
stack.pop()
return path, stack
else:
visited[curr] = 1
for ele in graph[curr]:
if visited[ele] == 0:
stack.append(ele)
path, stack = traverse(graph, visited, ele, path, stack, n)
stack.pop()
return path, stack
n, m, t, c = map(int, input().split())
graph = [[] for _ in range(n)]
visited = [0 for _ in range(n)]
for _ in range(m):
a,b = map(int, input().split())
graph[a-1].append(b-1)
graph[b-1].append(a-1)
path, _ = traverse(graph, visited, 0, [], [0], n)
path.sort(key=lambda x:len(x))
# print(path)
tim = 0
l = len(path[0])
for i in range(1, l):
tim += c
if i==l-1:
break
else:
temp = tim//t
if temp%2==1:
tim = (temp+1)*t
print(tim)
2nd--
#include
using namespace std;
#define ll long long int
vector store[1001];
vector>> ptr;
void dfs(ll st,ll e,ll vis[],vector rs,ll w){
rs.push_back(st);
if(st == e){
ptr.push_back({w*(rs.size()-1),rs});
return;
}
for(auto u : store[st]){
if(vis[u] == 0){
vis[st] = 1;
dfs(u,e,vis,rs,w);
vis[st] = 0;
}
}
}
int main()
{
ll n,m,t,c,u,v;
cin>>n>>m>>t>>c;
while(m--){
cin>>u>>v;
store[u].push_back(v);
store[v].push_back(u);
}
vector rs;
ll w = c;
ll vis[n+1] = {0};
dfs(1,n,vis,rs,w);
sort(ptr.begin(),ptr.end());
vector rt[n+1];
for(int i=0;i ll nes = ptr[i].second.size();
for(auto u : ptr[i].second){
rt[u].push_back(nes);
}
}
ll trt[n+1] = {0};
trt[1] = 1;
trt[n] = 1;
for(int i=2;i<=n-1;i++){
if(rt[i].size() > 0){
ll tm = rt[i][0];
ll up = upper_bound(rt[i].begin(),rt[i].end(),tm) - rt[i].begin();
trt[i] = up;
}
}
for(int i=1;i<=n;i++)
cout< return 0;
}
3rd--
def fun(arr,s,en,length,char,t,ans,final,green,ch):
if ans//t>ch:
green=not green
ch+=1
if s==en:
final.append(ans)
return
for i in arr[s]:
if str(i) not in length[:-1].split():
if green:
fun(arr,i,en,length+str(i)+" ",char,t,ans+char,final,green,ch)
else:
aq=ans%t
fun(arr,i,en,length+str(i)+" ",char,t,ans+char+t-aq,final,not green,ch)
return
n,m,t,c=map(int,input().split())
d={}
for i in range(m):
u,v=map(int,input().split())
if u in d:
d[u].append(v)
else:
d[u]=[v]
if v in d:
d[v].append(u)
else:
d[v]=[u]
l="1 "
final=[]
green=True
ch=0
ret=fun(d,1,n,l,c,t,0,final,green,ch)
final=set(final)
final=list(final)
final.sort()
if len(final)>1:
print(final[1])
else:
print(-1)
Telegram : @placementupdatess
330 viewsedited 05:21
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