Submission #3413996
Source Code Expand
// Skqliao
#include <bits/stdc++.h>
#define rep(i, l, r) for (__typeof(l) i = (l), _##i##_ = (r); i < _##i##_; ++i)
#define rof(i, l, r) for (__typeof(l) i = (l) - 1, _##i##_ = (r); i >= _##i##_; --i)
#define SZ(x) (int)x.size()
#define ALL(x) x.begin(), x.end()
template<typename T> bool chkMax(T &x, const T& y) {return x < y ? (x = y), 1 : 0;}
template<typename T> bool chkMin(T &x, const T& y) {return x > y ? (x = y), 1 : 0;}
typedef long long ll;
#define debug(...) fprintf(stderr, __VA_ARGS__)
#define DEBUG debug("passing %d in %s\n", __LINE__, __FUNCTION__)
const int MAXN = 500000 + 5;
char Str[MAXN];
int N;
bool check(int x) {
static int A[MAXN];
int len = N - 1, sum = 0;
rep(i, 0, N) {
A[i] = (Str[i] - '0') * 9;
}
A[0] += 9 * x;
for(int i = 0; i <= len; ++i) {
if(i == len && A[i] > 9) {
A[++len] = 0;
}
A[i + 1] += A[i] / 10;
A[i] %= 10;
sum += A[i];
}
return sum <= 9 * x;
}
int main() {
scanf("%s", Str);
N = strlen(Str);
std::reverse(Str, Str + N);
int l = 1, r = N;
int ans = 0;
while(l <= r) {
int m = (l + r) >> 1;
if(check(m)) {
ans = m;
r = m - 1;
} else {
l = m + 1;
}
}
printf("%d\n", ans);
return 0;
}
Submission Info
Submission Time
2018-10-15 21:15:59+0900
Task
A - Airport Bus
User
Skqliao
Language
C++ (GCC 5.4.1)
Score
0
Code Size
1238 Byte
Status
WA
Exec Time
1 ms
Memory
256 KB
Compile Error
./Main.cpp: In function ‘int main()’:
./Main.cpp:39:18: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
scanf("%s", Str);
^
Judge Result
Set Name
Sample
All
Score / Max Score
0 / 0
0 / 300
Status
Set Name
Test Cases
Sample
sample1.txt, sample2.txt
All
sample1.txt, sample2.txt, in1.txt, in2.txt, in3.txt, in4.txt, in5.txt, in6.txt, in7.txt, in8.txt, sample1.txt, sample2.txt
Case Name
Status
Exec Time
Memory
in1.txt
WA
1 ms
256 KB
in2.txt
WA
1 ms
256 KB
in3.txt
WA
1 ms
256 KB
in4.txt
WA
1 ms
256 KB
in5.txt
WA
1 ms
256 KB
in6.txt
WA
1 ms
256 KB
in7.txt
WA
1 ms
256 KB
in8.txt
WA
1 ms
256 KB
sample1.txt
WA
1 ms
256 KB
sample2.txt
WA
1 ms
256 KB