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QOJ
| ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
|---|---|---|---|---|---|---|---|---|---|
| #123275 | #6510. Best Carry Player 3 | Si23 | WA | 25ms | 1748kb | C++14 | 2.8kb | 2023-07-11 23:56:09 | 2023-07-11 23:56:09 |
Judging History
answer
#include <cstdio>
#include <cstdlib>
#include <cstring>
#include <algorithm>
using namespace std;
typedef long long ll;
#define ones(d) ((1 << (d)) - 1)
ll X, Y, K;
ll s[100];
int digits(ll k){
int res = 0;
while(k){
res++;
k >>= 1ll;
}
return res;
}
int main(){
int T;
scanf("%d\n", &T);
while(T--){
scanf("%lld%lld%lld", &X, &Y, &K);
if(X == Y){
printf("0\n");
continue;
}
if(K <= 1){
printf("%lld\n", llabs(X - Y));
continue;
}
ll steps = 0ll;
if(X > Y) swap(X, Y);
int d = digits(K + 1) - 1;
int y = digits(Y ^ X);
// printf("%d, %d\n", y, d);
if(y <= d){
printf("1\n");
continue;
}
if(y == d + 1){
if((X ^ Y) <= K)
printf("1\n");
else if((X & ones(d)) == ones(d)){
if((Y & ones(d)) == 0)
printf("1\n");
else
printf("2\n");
}
else{
if((Y & ones(d)) == 0)
printf("2\n");
else
printf("3\n");
}
continue;
}
if((X & ones(d+1)) != ones(d+1)){
if(((X & ones(d+1)) ^ ones(d+1)) <= K)
steps++;
else if((X & ones(d)) == ones(d)){
if(K & (1 << d))
steps++;
else
steps += 2;
}
else if(K & (1 << d))
steps += 2;
else
steps += 3;
}
// printf("steps = %d\n", steps);
if(K & (1 << d)){
s[d] = 0ll;
s[d + 1] = 2ll;
}
else{
s[d] = 1ll;
s[d + 1] = 3ll;
}
for(int i = d + 2; i < y; i++)
s[i] = (s[i - 1] << 1ll) + 1ll;
// for(int i = d; i < y; i++)
// printf("s[%d] = %d\n", i, s[i]);
for(int i = d + 2; i < y; i++){
if(X & (1 << (i - 1))) continue;
else steps += s[i - 1] + 1ll;
}
steps++;
// printf("cur = %d\n", steps);
for(int i = y - 1; i > d + 1; i--){
if((Y & (1 << (i - 1))) == 0) continue;
steps += s[i - 1] + 1;
}
if((Y & ones(d + 1)) != 0){
if((Y & ones(d + 1)) <= K)
steps++;
else{
if(K & (1 << d))
steps += 2ll;
else if ((Y & ones(d)) == 0)
steps += 2ll;
else
steps += 3ll;
}
}
printf("%lld\n", steps);
}
return 0;
}
Details
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Test #1:
score: 100
Accepted
time: 0ms
memory: 1748kb
input:
8 4 5 0 5 8 3 9 2 6 15 28 5 97 47 8 164 275 38 114514 1919 810 0 1152921504606846975 1
output:
1 2 3 5 11 6 331 1152921504606846975
result:
ok 8 numbers
Test #2:
score: -100
Wrong Answer
time: 25ms
memory: 1744kb
input:
100000 84 318 6 54 226 7 92 33 0 39 54 5 76 79 7 247 110 0 211 90 0 4 430 3 230 17 1 491 93 5 196 117 7 137 29 2 76 490 6 422 43 7 277 26 4 159 43 1 67 37 5 17 2 5 113 176 7 85 473 0 68 217 7 275 8 7 124 34 1 30 66 0 80 149 3 103 149 6 84 354 1 27 342 7 94 114 1 69 125 1 72 48 7 361 8 7 285 82 1 74 ...
output:
87 45 59 6 1 137 121 213 213 150 21 81 156 95 95 116 12 6 16 388 39 67 90 36 35 17 270 79 20 56 6 89 203 108 26 15 157 98 111 389 174 123 59 289 78 17 21 36 275 191 17 102 60 93 100 11 6 79 44 63 91 60 22 109 11 3 10 67 11 85 207 47 39 83 156 189 107 27 81 247 81 335 33 144 11 50 54 347 233 175 30 7...
result:
wrong answer 1940th numbers differ - expected: '2', found: '3'