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QOJ
| ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
|---|---|---|---|---|---|---|---|---|---|
| #801085 | #9810. Obliviate, Then Reincarnate | WilliamHu | Compile Error | / | / | C++20 | 1.6kb | 2024-12-06 18:19:23 | 2024-12-06 18:19:23 |
Judging History
This is the latest submission verdict.
- [2024-12-06 18:19:23]
- Judged
- Verdict: Compile Error
- Time: 0ms
- Memory: 0kb
- [2024-12-06 18:19:23]
- Submitted
answer
#include<bits/stdc++.h>
#pragma optimize(2)
#define int long long
using namespace std;
int read()
{
int x = 0, f = 1;
char c = getchar();
while(c != EOF and !isdigit(c))
{
if(c == '-')f = -1;
c = getchar();
}
while(isdigit(c))
{
x = x * 10 + c - '0';
c = getchar();
}
return x * f;
}
int n, m, k;
char s[1000010], p[1000010];
int mod = 1e9+7;
int M[4] = {0, 1, 3, 2};
int c[1000010], a[1000010], b[1000010];
int pows[1000010];
signed main()
{
pows[0] = 1;
for(int i = 1;i <= 1e6;i ++)pows[i] = pows[i - 1] * 4 % mod;
for(int i = 1;i <= 1e6;i ++)pows[i] = (pows[i] + pows[i - 1]) % mod;
int T = read();
while(T --)
{
cin>>s+1;
cin>>p+1;
k = read();
n = strlen(s + 1);
m = strlen(p + 1);
int len = max(n, m) + (max(n, m) & 1ll), maxn = 0;
for(int i = 1;i <= len;i ++)
{
if(i <= n)a[i] = s[n - i + 1] - '0';
else a[i] = 0;
if(i <= m)b[i] = p[m - i + 1] - '0';
else b[i] = 0;
}
len /= 2;
for(int i = 1;i <= len;i ++)
{
int fi = a[(i<<1) - 1] ^ b[(i<<1) - 1];
int se = a[(i<<1)] ^ b[(i<<1)];
int x = fi + se * 2;
//cout<<i<<' '<<x<<endl;
if(x != 0)maxn = i;
c[i] = M[x];
}
if(! maxn)
{
cout<<(pows[k - 1] - 1 + mod) % mod<<'\n';
}
else if(k > maxn)
{
cout<<-1<<'\n';
}
else
{
c[k - 1] = 4;
int ans = 0;
for(int i = 1;i <= len;i ++)
{
//cout<<c[i]<<' '<<pows[i]<<endl;
ans = (ans + c[i] * pows[i - 1] % mod) % mod;
}
cout<<ans<<'\n';
}
for(int i = 1;i <= len;i ++)a[i] = b[i] = '0';
}
return 0;
}
Details
answer.code: In function ‘int main()’:
answer.code:37:20: error: no match for ‘operator>>’ (operand types are ‘std::istream’ {aka ‘std::basic_istream<char>’} and ‘char*’)
37 | cin>>s+1;
| ~~~^~~~~
| | |
| | char*
| std::istream {aka std::basic_istream<char>}
In file included from /usr/include/c++/13/sstream:40,
from /usr/include/c++/13/complex:45,
from /usr/include/c++/13/ccomplex:39,
from /usr/include/x86_64-linux-gnu/c++/13/bits/stdc++.h:127,
from answer.code:2:
/usr/include/c++/13/istream:325:7: note: candidate: ‘std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(void*&) [with _CharT = char; _Traits = std::char_traits<char>; __istream_type = std::basic_istream<char>]’ (near match)
325 | operator>>(void*& __p)
| ^~~~~~~~
/usr/include/c++/13/istream:325:7: note: conversion of argument 1 would be ill-formed:
answer.code:37:23: error: cannot bind non-const lvalue reference of type ‘void*&’ to an rvalue of type ‘void*’
37 | cin>>s+1;
| ~^~
/usr/include/c++/13/istream:201:7: note: candidate: ‘std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(long long unsigned int&) [with _CharT = char; _Traits = std::char_traits<char>; __istream_type = std::basic_istream<char>]’ (near match)
201 | operator>>(unsigned long long& __n)
| ^~~~~~~~
/usr/include/c++/13/istream:201:7: note: conversion of argument 1 would be ill-formed:
answer.code:37:23: error: invalid conversion from ‘char*’ to ‘long long unsigned int’ [-fpermissive]
37 | cin>>s+1;
| ~^~
| |
| char*
answer.code:37:23: error: cannot bind rvalue ‘(long long unsigned int)(((char*)(& s)) + 1)’ to ‘long long unsigned int&’
/usr/include/c++/13/istream:197:7: note: candidate: ‘std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(long long int&) [with _CharT = char; _Traits = std::char_traits<char>; __istream_type = std::basic_istream<char>]’ (near match)
197 | operator>>(long long& __n)
| ^~~~~~~~
/usr/include/c++/13/istream:197:7: note: conversion of argument 1 would be ill-formed:
answer.code:37:23: error: invalid conversion from ‘char*’ to ‘long long int’ [-fpermissive]
37 | cin>>s+1;
| ~^~
| |
| char*
answer.code:37:23: error: cannot bind rvalue ‘(long long int)(((char*)(& s)) + 1)’ to ‘long long int&’
/usr/include/c++/13/istream:192:7: note: candidate: ‘std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(long unsigned int&) [with _CharT = char; _Traits = std::char_traits<char>; __istream_type = std::basic_istream<char>]’ (near match)
192 | operator>>(unsigned long& __n)
| ^~~~~~~~
/usr/include/c++/13/istream:192:7: note: conversion of argument 1 would be ill-formed:
answer.code:37:23: error: invalid conversion from ‘char*’ to ‘long unsigned int’ [-fpermissive]
37 | cin>>s+1;
| ~^~
| |
| char*
answer.code:37:23: error: cannot bind rvalue ‘(long unsigned int)(((char*)(& s)) + 1)’ to ‘long unsigned int&’
/usr/include/c++/13/istream:188:7: note: candidate: ‘std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(long int&) [with _CharT = char; _Traits = std::char_traits<char>; __istream_type = std::basic_istream<char>]’ (near match)
188 | operator>>(long& __n)
| ^~~~~~~~
/usr/include/c++/13/istream:188:7: note: conversion of argument 1 would be ill-formed:
answer.code:37:23: error: invalid conversion from ‘char*’ to ‘long int’ [-fpermissive]
37 | cin>>s+1;
| ~^~
| |
| char*
answer.code:37:23: error: cannot bind rvalue ‘(long int)(((char*)(& s)) + 1)’ to ‘long int&’
/usr/include/c++/13/istream:184:7: note: candidate: ‘std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(unsigned int&) [with _CharT = char; _Traits = std::char_traits<char>; __istream_type = std::basic_istream<char>]’ (near match)
184 | operator>>(unsigned int& __n)
| ^~~~~~~~
/usr/include/c++/13/istream:184:7: note: conversion of argument 1 would be ill-formed:
answer.code:37:23: error: invalid conversion from ‘char*’ to ‘unsigned int’ [-fpermissive]
37 | cin>>s+1;
| ~^~
| |
| ...