Submission #165151

#	Time	Username	Problem	Language	Result	Execution time	Memory
165151		Segtree	Toy Train (IOI17_train)	C++14	Compilation error	0 ms	0 KiB

train

#include<iostream>
#include<algorithm>
#include<vector>
#include<queue>
#include<set>
#include<unordered_map>
using namespace std;
typedef long long ll;
#define chmax(a,b) a=max(a,b)
#define chmin(a,b) a=min(a,b)
#define mod 1000000007
#define mad(a,b) a=(a+b)%mod
#define N 5010
vector<int> g[N];
vector<int> who_wins(vector<int> a,vector<int> r,vector<int> u,vector<int> v){
    ll n=a.size(),m=u.size();
    bool th[N];
    for(int i=0;i<n;i++)th[i]=0;
    for(int i=0;i<m;i++){
	g[u[i]].push_back(v[i]);
	if(u[i]==v[i])th[u[i]]=1;
    }
    vector<int> ans(n);
    for(int i=0;i<n;i++){
	bool ok=1;
	for(int j=i;j<n;j++){
	    if(th[j]==1&&a[j]==1&&r[j]==1){ok=1; break;}
	    if(th[j]==1&&a[j]==0&&r[j]==0){ok=0; break;}
	}
	ans[i]=ok;
    }
    return ans;
}
int main(){
    cin.tie(0);
    ios::sync_with_stdio(0);
    ll n,m; cin>>n>>m;
    vector<int> a(n),r(n),u(m),v(m);
    for(int i=0;i<n;i++){
	cin>>a[i]>>r[i];
    }
    for(int i=0;i<m;i++){
	cin>>u[i]>>v[i];
    }
    vector<int> ans=who_wins(a,r,u,v);
    for(auto t:ans)cout<<t<<" "; cout<<endl;
}

Compilation message (stderr)

train.cpp: In function 'int main()':
train.cpp:46:5: warning: this 'for' clause does not guard... [-Wmisleading-indentation]
     for(auto t:ans)cout<<t<<" "; cout<<endl;
     ^~~
train.cpp:46:34: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'for'
     for(auto t:ans)cout<<t<<" "; cout<<endl;
                                  ^~~~
/tmp/ccJSnsAx.o: In function `main':
grader.cpp:(.text.startup+0x0): multiple definition of `main'
/tmp/ccPQgS3P.o:train.cpp:(.text.startup+0x0): first defined here
collect2: error: ld returned 1 exit status