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QOJ
| ID | 题目 | 提交者 | 结果 | 用时 | 内存 | 语言 | 文件大小 | 提交时间 | 测评时间 |
|---|---|---|---|---|---|---|---|---|---|
| #595184 | #7747. Memory | AmiyaCast | WA | 4ms | 7608kb | C++14 | 2.2kb | 2024-09-28 12:55:03 | 2024-09-28 12:55:03 |
Judging History
answer
#include<bits/stdc++.h>
#define ll __int128
#define pii make_pair
#define pb push_back
#define rep(i,a,b) for(int i=a;i<=b;++i)
#define per(i,b,a) for(int i=b;i>=a;--i)
const ll inf = 1145141919810;
using namespace std;
inline ll read() {
ll x=0,f=1;
char c=getchar();
while (c<'0' || c>'9') {
if (c=='-') f=-1;
c=getchar();
}
while (c>='0' && c<='9') {
x=x*10+c-'0';
c=getchar();
}
return x*f;
}
inline void print(ll x) {
if(x < 0) putchar('-'), x = -x;
if(x > 9) print(x / 10);
putchar(x % 10 + '0');
return ;
}
inline void pprint(ll x) {
print(x);
puts("");
}
const int N = 2e5 + 7;
ll a[N], b[100], n;
ll qm(ll a, ll b) {
ll base = 1;
while(b) {
if(b & 1) base *= a;
a *= a;
b >>= 1;
}
return base;
}
const int Block = 32;
void slv1() {
vector<ll> f;
f.resize(n + 1, 0ll);
for(int i = 1; i <= n; ++i) {
f[i] = f[i - 1] + a[i] * b[i - 1];
if(f[i] > 0) {
putchar('+');
} else if(f[i] == 0) {
putchar('0');
} else if(f[i] < 0) {
putchar('-');
}
}
}
void slv2() { //Block
vector<ll> f;
vector<int> g;
f.resize(n + 1);
g.resize(n + 1);
for(int i = 1; i <= Block; ++i) {
f[i] = f[i - 1] + a[i] * b[i - 1];
if(f[i] > 0) {
putchar('+');
} else if(f[i] == 0) {
putchar('0');
} else if(f[i] < 0) {
putchar('-');
}
if(f[i] > 0) g[i] = 1;
if(f[i] == 0) g[i] = 0;
if(f[i] < 0) g[i] = -1;
}
for(int i = Block + 1; i <= n; ++i){
f[i - Block] = 0ll;
for(int j = i - Block + 1, k = 0; j <= i; ++j, ++k){//计算连续的31个
f[j] = f[j - 1] + a[j] * b[k];
}
if(f[i] > 0){
putchar('+');
}else if(f[i] == 0){
if(g[i - Block] > 0){
putchar('+');
}else if(g[i - Block] == 0){
putchar('0');
}else if(g[i - Block] < 0){
putchar('-');
}
}else if(f[i] < 0){
putchar('-');
}
if(f[i] > 0) g[i] = 1;
if(f[i] == 0) g[i] = 0;
if(f[i] < 0) g[i] = -1;
}
}
int main() {
n = read();
rep(i, 1, n) a[i] = read();
for(int i = 0; i <= Block; ++i) b[i] = qm(2, i);
if(n <= Block) {
slv1();
} else {
slv2();
}
return 0;
}
/*
10
2 -1 4 -7 4 -8 3 -6 4 -7
*/
详细
Test #1:
score: 100
Accepted
time: 0ms
memory: 3580kb
input:
10 2 -1 4 -7 4 -8 3 -6 4 -7
output:
+0+-+---+-
result:
ok single line: '+0+-+---+-'
Test #2:
score: 0
Accepted
time: 0ms
memory: 3600kb
input:
10 -1 36 18 18 18 18 18 18 18 -18
output:
-++++++++-
result:
ok single line: '-++++++++-'
Test #3:
score: 0
Accepted
time: 0ms
memory: 3812kb
input:
1000 -1 193552 96776 96776 96776 96776 96776 96776 96776 96776 96776 96776 96776 96776 96776 96776 96776 96776 96776 96776 96776 96776 96776 96776 96776 96776 96776 96776 96776 96776 96776 96776 96776 96776 96776 96776 96776 96776 96776 96776 96776 96776 96776 96776 96776 96776 96776 96776 96776 967...
output:
-+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++...
result:
ok single line: '-+++++++++++++++++++++++++++++...++++++++++++++++++++++++++++++-'
Test #4:
score: 0
Accepted
time: 4ms
memory: 7608kb
input:
100000 -1 696082628 348041314 348041314 348041314 348041314 348041314 348041314 348041314 348041314 348041314 348041314 348041314 348041314 348041314 348041314 348041314 348041314 348041314 348041314 348041314 348041314 348041314 348041314 348041314 348041314 348041314 348041314 348041314 348041314 ...
output:
-+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++...
result:
ok single line: '-+++++++++++++++++++++++++++++...++++++++++++++++++++++++++++++-'
Test #5:
score: 0
Accepted
time: 0ms
memory: 3472kb
input:
10 -1 70 -35 -72 36 12 -6 42 -21 -84
output:
-+---+-+--
result:
ok single line: '-+---+-+--'
Test #6:
score: -100
Wrong Answer
time: 0ms
memory: 3636kb
input:
1000 -1 -120742 60371 -567374 283687 -507718 253859 -579246 289623 21402 -10701 539474 -269737 -681332 340666 -746052 373026 -993382 496691 -333880 166940 -632724 316362 909690 -454845 86680 -43340 236688 -118344 -29102 14551 6252 -3126 -440612 220306 -878460 439230 649538 -324769 -651632 325816 882...
output:
---------+-+-----------+-+-+---+-----+---+-+-+---+-+-+-+-+---+--0-0+0-0-0+0-0+0+0-0-0+0-0-0+0+0+0-0+0-0+0+0-0-0+0-0-0-0+0+0-0+0-0-0+0+0+0-0-0-0+0+0+0+0+0-0-0-0+0-0-0+0+0+0-0-0-0+0-0-0-0+0+0+0-0-0-0+0-0+0+0-0+0+0-0+0+0+0+0-0+0+0+0+0+0-0-0-0-0+0-0-0+0-0-0+0+0+0+0+0+0+0+0-0+0+0+0-0-0-0+0-0+0+0+0+0+0+0-...
result:
wrong answer 1st lines differ - expected: '---------+-+-----------+-+-+--...+---+-+-+-+-+-----+-+---------+', found: '---------+-+-----------+-+-+--...+0-0+0+0+0+0+0-0-0+0+0-0-0-0-0+'