Submission #881067

#	Time	Username	Problem	Language	Result	Execution time	Memory
881067		VerdantGMD	Power Plant (JOI20_power)	C++17	Compilation error	0 ms	0 KiB

power

#include <iostream>#include <vector>using namespace std;vector<int> tab[200005];int zp[200005];int dp[200005];bool val[200005];int maxwyn = 0;void dfs(int p, int parent){    int sum = 0;    int maxx = 0;    for(int i = 0; i < tab[p].size(); i++)    {        if(tab[p][i] != parent)        {            dfs(tab[p][i], p);        }    }    for(int i = 0; i < tab[p].size(); i++)    {        if(tab[p][i] != parent)        {            sum += zp[tab[p][i]];            maxx = max(maxx, zp[tab[p][i]]);        }    }        if(val[p] == true)    {        zp[p] = max(1, sum - 1);        dp[p] = maxx + 1;    }    else    {        zp[p] = sum;        dp[p] = maxx;    }    maxwyn = max(zp[p], maxwyn);    maxwyn = max(dp[p], maxwyn);}int main(){    ios_base::sync_with_stdio(0);    cin.tie(0);    int n;    cin >> n;    for(int i = 0; i < n-1; i++)    {        int a, b;        cin >> a >> b;        tab[a].push_back(b);        tab[b].push_back(a);    }    string a;    cin >> a;    for(int i = 0; i < a.size(); i++)    {        val[i+1] = a[i] - '0';    }        dfs(1, 0);    /*for(int i = 1; i <= n; i++)    {        cout << i << " " << dp[i] << endl;    }*/    cout << maxwyn;}

Compilation message (stderr)

power.cpp:1:20: warning: extra tokens at end of #include directive
    1 | #include <iostream>#include <vector>using namespace std;vector<int> tab[200005];int zp[200005];int dp[200005];bool val[200005];int maxwyn = 0;void dfs(int p, int parent){    int sum = 0;    int maxx = 0;    for(int i = 0; i < tab[p].size(); i++)    {        if(tab[p][i] != parent)        {            dfs(tab[p][i], p);        }    }    for(int i = 0; i < tab[p].size(); i++)    {        if(tab[p][i] != parent)        {            sum += zp[tab[p][i]];            maxx = max(maxx, zp[tab[p][i]]);        }    }        if(val[p] == true)    {        zp[p] = max(1, sum - 1);        dp[p] = maxx + 1;    }    else    {        zp[p] = sum;        dp[p] = maxx;    }    maxwyn = max(zp[p], maxwyn);    maxwyn = max(dp[p], maxwyn);}int main(){    ios_base::sync_with_stdio(0);    cin.tie(0);    int n;    cin >> n;    for(int i = 0; i < n-1; i++)    {        int a, b;        cin >> a >> b;        tab[a].push_back(b);        tab[b].push_back(a);    }    string a;    cin >> a;    for(int i = 0; i < a.size(); i++)    {        val[i+1] = a[i] - '0';    }        dfs(1, 0);    /*for(int i = 1; i <= n; i++)    {        cout << i << " " << dp[i] << endl;    }*/    cout << maxwyn;}
      |                    ^
/usr/bin/ld: /usr/lib/gcc/x86_64-linux-gnu/10/../../../x86_64-linux-gnu/crt1.o: in function `_start':
(.text+0x24): undefined reference to `main'
collect2: error: ld returned 1 exit status