Submission #1477934

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Source Code Expand

#include <bits/stdc++.h>
 
#define forn(i, n) for (llong i = 0ll; i < (llong) n; ++i)
#define fornn(i, l, r) for (llong i = (llong) l; i < (llong) r; ++i)
#define size(x) ((int) (x.size()))
 
using namespace std;
 
typedef long long llong;
const llong inf = (llong) 1e+9 + 7ll;
const llong linf = (llong) 1e+18 + 7ll;
const long double eps = (long double) 1e-9;
const long double pi = acosl((long double) -1.0);
const int alph = 26;

mt19937 mrand(random_device{} ()); 

template<typename T, typename U> inline llong umin(const T& a, const U& b) { return a < b ? a : b; }
template<typename T, typename U> inline llong umax(const T& a, const U& b) { return a > b ? a : b; }
 
static char buff[(int) 2e6 + 17]; // reads std::string
const int maxn = (int) 2e5 + 17;

int n;
int a[maxn], ans[maxn];
set<int> s[maxn];

bool read()
{
	if (scanf("%d", &n) != 1)
		return false;

	forn (i, n)
		scanf("%d", a + i);

	return true;
}

void solve()
{
	vector<int> v(a, a + n + 1);
	sort(v.begin(), v.end());
	v.resize(unique(v.begin(), v.end()) - v.begin());

	forn (i, n)
	{
		a[i] = lower_bound(v.begin(), v.end(), a[i]) - v.begin();
		s[a[i]].insert(i);
	}

	for (int i = size(v) - 1; i > 0; --i)
	{
		ans[*s[i].begin()] += 1ll * (v[i] - v[i - 1]) * size(s[i]);

		if (size(s[i - 1]) < size(s[i]))
			s[i].swap(s[i - 1]);

		for (auto j : s[i])
			s[i - 1].insert(j);
	}

	forn (i, n)
		printf("%d\n", ans[i]);
}

int main()
{
#if SEREZHKA
	freopen("file.in", "r", stdin);
#endif

	while (read())
		solve();

	return 0;
}

Submission Info

Compile Error

./Main.cpp: In function ‘bool read()’:
./Main.cpp:34:21: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d", a + i);
                     ^

Judge Result