Submission #402288

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
402288	2021-05-11 14:33:27	nandonathaniel	Sum Zero (RMI20_sumzero)	C++14	100 / 100	752 ms	15284 KiB

sumzero

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#include<bits/stdc++.h>
using namespace std;
typedef pair<int,int> pii;
const int MAXN=400005,LOG=4;
int kiri[MAXN],pa[LOG][MAXN],idx[MAXN],MAX;
vector<pii> V;
 
int main(){
  ios_base::sync_with_stdio(false);cin.tie(NULL);cout.tie(NULL);
  int N,L,R;
  cin >> N;
  memset(kiri,-1,sizeof(kiri));
  memset(idx,-1,sizeof(idx));
  long long sum=0;
  V.push_back({sum,0});
  for(int i=1;i<=N;i++){
    cin >> L;
    sum+=L;
    V.push_back({sum,i});
  }
  sort(V.begin(),V.end());
  for(int i=0;i<V.size();i++){
    if(i==0 || V[i].first!=V[i-1].first)MAX++;
    pa[0][V[i].second]=MAX;
  }
  idx[pa[0][0]]=0;
  for(int i=1;i<=N;i++){
    kiri[i]=idx[pa[0][i]];
    idx[pa[0][i]]=i;
  }
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

Compilation message (stderr)

sumzero.cpp: In function 'int main()':
sumzero.cpp:22:15: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   22 |  for(int i=0;i<V.size();i++){
      |              ~^~~~~~~~~

• Subtask 1: 22 / 22
• Subtask 2: 39 / 39
• Subtask 3: 39 / 39