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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 |
---|---|---|---|---|---|---|---|---|---|
#400138 | #6750. Calculate | ericmegalovania | WA | 1ms | 3788kb | C++20 | 1.4kb | 2024-04-27 00:43:00 | 2024-04-27 00:43:01 |
Judging History
answer
#include<bits/stdc++.h>//傻逼高精度,大模拟,之后再写
using namespace std;
//#define ONLINE
#ifndef ONLINE
#define debug(...) fprintf(stderr,##__VA_ARGS__)
#else
#define debug(...) ;
#endif
using LL=long long;
using PII=pair<int,int>;
template<typename T>
inline T READ(){
T x=0; bool f=0; char c=getchar();
while(c<'0' || c>'9') f|=(c=='-'),c=getchar();
while(c>='0' && c<='9') x=x*10+c-'0',c=getchar();
return f?-x:x;
}
inline int read(){return READ<int>();}
inline LL readLL(){return READ<LL>();}
mt19937 rng(chrono::system_clock::now().time_since_epoch().count());
int ans=0,x=0;
int main(){
ios::sync_with_stdio(false);
string s; cin>>s;
vector<int>op{0};
bool flag=0;
for(char c:s){
if(c>='0' && c<='9'){
x=x*10+c-'0';
}
else if(c=='?'){
x=x*10+(flag?0:9);
}
else{
if(x){
ans+=flag?-x:x;
x=0;
}
if(c=='('){
op.push_back(0);
}
else if(c==')'){
op.pop_back();
}
else if(c=='+'){
if(op.back()){
op.back()=0;
flag^=1;
}
}
else if(c=='-'){
if(!op.back()){
op.back()=1;
flag^=1;
}
}
}
}
if(x){
ans+=flag?-x:x;
x=0;
}
cout<<ans;
return 0;
}
/* stuff you should look for
* int overflow, array bounds
* special cases (n=1?)
* do smth instead of nothing and stay organized
* WRITE STUFF DOWN
* DON'T GET STUCK ON ONE APPROACH
*/
详细
Test #1:
score: 100
Accepted
time: 1ms
memory: 3552kb
input:
?+?
output:
18
result:
ok 1 number(s): "18"
Test #2:
score: 0
Accepted
time: 0ms
memory: 3788kb
input:
(?+9)-(?+1)
output:
17
result:
ok 1 number(s): "17"
Test #3:
score: -100
Wrong Answer
time: 0ms
memory: 3576kb
input:
((9)-(((8)-(2))+(((1+(1))-(1+((2)+2+2)))+(5)+4))+(((7)-((9)+3))-((8)-(0-(2))+0))+((6)-(6+(((4)-(9))-(8-((9)+(1))+(0)))+(2-((9)+7))-(1)))-((((7)+(1))-((3)+(3)))-((2)-((6)-((3)-(8)))))+(2+0-((6)-(1))))-((((3)-(((0)+((4)-(9))+((6+8)+4)+(5)-(4-(3)-(8)))-((8)-(2))))+(((2)-(4))+(6)-(2))+(6-(1))-((2+9)-(3+...
output:
105
result:
wrong answer 1st numbers differ - expected: '-63', found: '105'