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NOI.AC

IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#215159#2656. addN90253ms2156kbC++112.1kb2024-11-26 21:24:032024-11-26 23:05:25

answer

//
//  na 2656.cpp
//  Competitive Programming
//
//  Created by m2 on 2024/11/26.
//

#include <stdio.h>
#include <iostream>
using namespace std;
const int maxn = 1e6 + 5;
int n = -1;
char s[maxn];
inline bool prec(int l, int m, int r){
    if(l <= 0 || m <= 0 || r <= 0 || l + m + r != n)
        return false;
    return ((l = max(l, m)) == r || l + 1 == r) && s[l] != 0 && s[l + m] != 0;
}
inline void print(int l, int m, int r){
    for(int i = 0; i < l; ++i)
        putchar(s[i] ^ 48);
    putchar('+');
    for(int i = 0; i < m; ++i)
        putchar(s[l + i] ^ 48);
    putchar('=');
    for(int i = 0; i < r; ++i)
        putchar(s[l + m + i] ^ 48);
    putchar('\n');
}
inline bool check(int l, int m, int r){
//    fprintf(stderr, "check(%d, %d, %d)\n", l, m, r);
    if(!prec(l, m, r)){
//        cerr << "precheck err" << endl;
        return false;
    }
    bool ma = max(l, m) == r - 1;
    bool add = false;
    int bl = l, bm = l + m, br = n, d;
    for(int i = 1; i <= r; ++i){
        d = add;
        if(i <= l)
            d += s[bl - i];
        if(i <= m)
            d += s[bm - i];
        if(d >= 10){
            add = true;
            d -= 10;
        }else{
            add = false;
        }
        if(d != s[br - i] || (ma && !add && i != r)){
//            cerr << "err @" << i << endl;
            return false;
        }
    }
    print(l, m, r);
    return true;
}
int main(){
    cin.tie(0)->sync_with_stdio(false);
    while((s[++n] = getchar()) - 48 < 10u)
        s[n] ^= 48;
    if(s[0] == 0){ // ???
        cin >> n;
        for(int i = 0; i < n; ++i)
            s[i] = s[i + n + n] = 1;
        for(int i = n; i < n * 2; ++i)
            s[i] = 9;
        s[n + n + n] = 0;
        n = n * 3 + 1;
    }
    for(int l = 1; l <= n / 2; ++l){
        int r = max(l, (n - l) / 2), m = n - l - r;
        if(check(l, m, r))
            break;
        ++r;
        --m;
        if(check(l, m, r))
            break;
        ++r;
        --m;
        if(check(l, m, r))
            break;
    }
    return 0;
}

Details

小提示:点击横条可展开更详细的信息

Test #1:

score: 5
Accepted
time: 0ms
memory: 1196kb

input:

93944386991110939443869921

output:

939443869911+10=939443869921

result:

ok single line: '939443869911+10=939443869921'

Test #2:

score: 5
Accepted
time: 0ms
memory: 1192kb

input:

454431423351945476661

output:

45443142+33519=45476661

result:

ok single line: '45443142+33519=45476661'

Test #3:

score: 0
Wrong Answer
time: 0ms
memory: 1188kb

input:

807674775734008076747757340

output:


result:

wrong answer 1st lines differ - expected: '8076747757340+0=8076747757340', found: ''

Test #4:

score: 5
Accepted
time: 0ms
memory: 1192kb

input:

47936157175791479437362

output:

479361571+75791=479437362

result:

ok single line: '479361571+75791=479437362'

Test #5:

score: 0
Wrong Answer
time: 1ms
memory: 1188kb

input:

8684160719450790868416071945079

output:


result:

wrong answer 1st lines differ - expected: '868416071945079+0=868416071945079', found: ''

Test #6:

score: 5
Accepted
time: 0ms
memory: 1192kb

input:

3150325920082064131504079841

output:

31503259200+820641=31504079841

result:

ok single line: '31503259200+820641=31504079841'

Test #7:

score: 5
Accepted
time: 18ms
memory: 1988kb

input:

9261598869160335057970310229283612818845075445997339978957735823966059362624832990688056822195031820...

output:

9261598869160335057970310229283612818845075445997339978957735823966059362624832990688056822195031820...

result:

ok single line: '926159886916033505797031022928...3054231497478113058482456217163'

Test #8:

score: 5
Accepted
time: 18ms
memory: 2012kb

input:

4701609646464966471786112512122938863110668626139644802941307402470417596440427343650542031038908331...

output:

4701609646464966471786112512122938863110668626139644802941307402470417596440427343650542031038908331...

result:

ok single line: '470160964646496647178611251212...8748395060129898210762369495747'

Test #9:

score: 5
Accepted
time: 22ms
memory: 2152kb

input:

9257202799561473086244723527541134302291247300137775651258683390946286052100443441136004200934466749...

output:

9257202799561473086244723527541134302291247300137775651258683390946286052100443441136004200934466749...

result:

ok single line: '925720279956147308624472352754...2243909924739032590362234901192'

Test #10:

score: 5
Accepted
time: 17ms
memory: 2080kb

input:

4416728326936622856150699213135191910979789931946758505266833530473668185681946524100519868737557117...

output:

4416728326936622856150699213135191910979789931946758505266833530473668185681946524100519868737557117...

result:

ok single line: '441672832693662285615069921313...3111611421682233543698480114264'

Test #11:

score: 5
Accepted
time: 18ms
memory: 2136kb

input:

3061041362133228009344583160193669358685821190644364754039063887060686947993153784177860432362852231...

output:

3061041362133228009344583160193669358685821190644364754039063887060686947993153784177860432362852231...

result:

ok single line: '306104136213322800934458316019...4042293112332153562949434601781'

Test #12:

score: 5
Accepted
time: 16ms
memory: 2136kb

input:

8531603642906385747583399978283975747482545589702570907905311483331351132043885935451850547243462360...

output:

8531603642906385747583399978283975747482545589702570907905311483331351132043885935451850547243462360...

result:

ok single line: '853160364290638574758339997828...5180929300855954383525415798317'

Test #13:

score: 5
Accepted
time: 25ms
memory: 2148kb

input:

3334731073815946487356418721839719459473953466541212185094515699104064312397044785650155583747481091...

output:

3334731073815946487356418721839719459473953466541212185094515699104064312397044785650155583747481091...

result:

ok single line: '333473107381594648735641872183...2104466046161989376727619609117'

Test #14:

score: 5
Accepted
time: 22ms
memory: 2108kb

input:

7113181137342253409543193679407457232222929505170124047879622285985297849800487899060254257891240998...

output:

7113181137342253409543193679407457232222929505170124047879622285985297849800487899060254257891240998...

result:

ok single line: '711318113734225340954319367940...7499580501189814539270742795615'

Test #15:

score: 5
Accepted
time: 23ms
memory: 2136kb

input:

2226576415518523623432262365703901892218433052474981493103118406267304359951441730045611163295598279...

output:

2226576415518523623432262365703901892218433052474981493103118406267304359951441730045611163295598279...

result:

ok single line: '222657641551852362343226236570...1283546754745341452795514550351'

Test #16:

score: 5
Accepted
time: 26ms
memory: 2120kb

input:

7282380568017210841065149843225478309106222219195648724985194189592224139941051182898879219925651713...

output:

7282380568017210841065149843225478309106222219195648724985194189592224139941051182898879219925651713...

result:

ok single line: '728238056801721084106514984322...6665028468440209585025731431738'

Test #17:

score: 5
Accepted
time: 19ms
memory: 2156kb

input:

6172023021615818261278406139291452768117320772111777913293782100858187571870407831738505138788606992...

output:

6172023021615818261278406139291452768117320772111777913293782100858187571870407831738505138788606992...

result:

ok single line: '617202302161581826127840613929...9022854228506784321805225740782'

Test #18:

score: 5
Accepted
time: 14ms
memory: 1776kb

input:

1641729471229192950020661455158841378773007409709289573050186474289570718374236969060246403530844480...

output:

1641729471229192950020661455158841378773007409709289573050186474289570718374236969060246403530844480...

result:

ok single line: '164172947122919295002066145515...1428289195899821981683641721297'

Test #19:

score: 5
Accepted
time: 7ms
memory: 1604kb

input:

6878197288916471551222877849454599200431985721720556540869310866854759368074574456390764568703818252...

output:

6878197288916471551222877849454599200431985721720556540869310866854759368074574456390764568703818252...

result:

ok single line: '687819728891647155122287784945...4028111836067678989020741708082'

Test #20:

score: 5
Accepted
time: 7ms
memory: 1676kb

input:

1336335135465815186373041570173603326293570642638147764739718555949768772153761126675803325646928488...

output:

1336335135465815186373041570173603326293570642638147764739718555949768772153761126675803325646928488...

result:

ok single line: '133633513546581518637304157017...5916651705852916207264857823016'