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Submission #198073

# Submission time Handle Problem Language Result Execution time Memory
198073 2020-01-24T15:39:17 Z ZwariowanyMarcin Trol (COCI19_trol) C++14
50 / 50
 12 ms 396 KB 
#include <bits/stdc++.h>
#define fi first
#define se second
#define mp make_pair
#define ss(x) (int) x.size()
#define pb push_back
#define LL long long
#define ld double
#define cat(x) cerr << #x << " = " << x << endl
#define FOR(i, j, n) for(int i = j; i <= n; ++i)
#define boost cin.tie(0), ios_base::sync_with_stdio(0);


using namespace std;

int T;
LL a, b;

int main() {
	scanf ("%d", &T);
	while (T--) {
		LL c = 0;
		scanf ("%lld%lld", &a, &b);
		for (int i = 0; i < 9; ++i) {
			LL l = a;
			while (l % 9 != i) l++;
			LL r = b;
			while (0 <= r && r % 9 != i) r--;
			int x = (i == 0 ? 9 : i);
			if (l <= r)
				c += 1LL * x * ((r - l) / 9 + 1);
		}
		printf ("%lld\n", c);
	}
	
	return 0;
}

Compilation message

trol.cpp: In function 'int main()':
trol.cpp:20:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf ("%d", &T);
  ~~~~~~^~~~~~~~~~
trol.cpp:23:9: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf ("%lld%lld", &a, &b);
   ~~~~~~^~~~~~~~~~~~~~~~~~~~

Subtask #1
50.0 / 50.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 384 KB Output is correct
2 Correct 2 ms 256 KB Output is correct
3 Correct 12 ms 376 KB Output is correct
4 Correct 2 ms 396 KB Output is correct
5 Correct 1 ms 376 KB Output is correct