제출 #881067

#제출 시각아이디문제언어결과실행 시간메모리
881067VerdantGMDPower Plant (JOI20_power)C++17
컴파일 에러
0 ms0 KiB
#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;}

컴파일 시 표준 에러 (stderr) 메시지

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