Submission #10443589

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Source Code Expand

#pragma GCC optimize ("Ofast")
#include <bits/stdc++.h>
#define FOR(i, a, b) for (int i=(a); i<(int)(b); i++)
#define FORD(i, a, b) for (int i=a; i>(int)(b); i--)
#define PPC(x) __builtin_popcount(x)
#define MSB(x) (31 - __builtin_clz(x))
#define pb push_back
#define ALL(x) (x).begin(), (x).end()
#define ithBit(m, i) ((m) >> (i) & 1)
#define ft first
#define sd second
#ifdef DEBUG
#include "debug.h"
#else
#define dbg(...) 0
#endif
using namespace std;

const int maxN = 1 << 17;

vector <int> G[maxN], comp;
int res[maxN], compId[maxN], compCtr;
pair <int, int> H[maxN];

void dfs(int v)
{
	compId[v] = compCtr;
	comp.pb(v);
	for (int u : G[v])
		if (compId[u] == 0)
			dfs(u);
}

void solve()
{
	int n, m, k;
	scanf ("%d%d%d", &n, &m, &k);
	FOR(i, 0, m)
	{
		int a, b;
		scanf ("%d%d", &a, &b);
		G[a].pb(b);
		G[b].pb(a);
	}
	
	FOR(i, 1, n+1) if (compId[i] == 0)
	{
		comp.resize(0);
		compCtr++;
		dfs(i);
		for (int v : comp)
			res[v] = comp.size() - 1 - G[v].size();
	}	
	
	while (k--)
	{
		int a, b;
		scanf ("%d%d", &a, &b);
		if (compId[a] == compId[b])
			res[a]--, res[b]--;	
	}
	
	FOR(i, 1, n+1)
		printf("%d ", res[i]);
	printf("\n");
} 
 
int main()
{
    int t;
    t = 1;//scanf ("%d", &t);
    while (t--)
    	solve();
    return 0;    
}

Submission Info

Compile Error

./Main.cpp: In function ‘void solve()’:
./Main.cpp:37:30: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
  scanf ("%d%d%d", &n, &m, &k);
                              ^
./Main.cpp:41:25: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
   scanf ("%d%d", &a, &b);
                         ^
./Main.cpp:58:25: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
   scanf ("%d%d", &a, &b);
                         ^

Judge Result