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NOI.AC

IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#215150#2656. addKXG100655ms32304kbC++112.3kb2024-11-26 20:24:122024-11-26 23:04:17

answer

#include <cstdio>
#include <cstring>
#include <algorithm>
#include <cstdlib>
using namespace std;
const int mod_cnt = 2;
const long long mods[] = {114196903, 947779559};
struct Hash {
    int n;
    char s[1000010];
    long long pow10[1000010][mod_cnt];
    long long Hash[1000010][mod_cnt];
    void init() {
        for (int j = 0; j < mod_cnt; j++) {
            pow10[0][j] = 1;
        }
        for (int i = 1; i <= n; i++) {
            for (int j = 0; j < mod_cnt; j++) {
                pow10[i][j] = pow10[i - 1][j] * 10 % mods[j];
                Hash[i][j] = (Hash[i - 1][j] * 10 + s[i] - '0') % mods[j];
            }
        }
    }
    long long getHash(int l, int r, int id) {
        return (Hash[r][id] - Hash[l - 1][id] * pow10[r - l + 1][id] % mods[id] + mods[id]) % mods[id];
    }
    bool check(int x, int y, int z) {
        if (x <= 0 || y <= 0 || z <= 0) {
            return false;
        }
        if (x + y + z != n) {
            return false;
        }
        if ((s[1] == '0' && x != 1) || (s[x + 1] == '0' && y != 1) || (s[x + y + 1] == '0' && z != 1)) {
            return false;
        }
        if (z > max(x, y) + 1 || z < max(x, y)) {
            return false;
        }
        for (int i = 0; i < mod_cnt; i++) {
            if ((getHash(1, x, i) + getHash(x + 1, x + y, i)) % mods[i] != getHash(x + y + 1, x + y + z, i)) {
                return false;
            }
        }
        return true;
    }
    void print(int x, int y, int z) {
        for (int i = 1; i <= n; i++) {
            putchar(s[i]);
            if (i == x) {
                putchar('+');
            }
            if (i == x + y) {
                putchar('=');
            }
        }
        exit(0);
    }
} Hsh;
int main() {
    scanf("%s", Hsh.s + 1);
    Hsh.n = strlen(Hsh.s + 1);
    Hsh.init();
    for (int i = 1; i <= Hsh.n; i++) {
        if (Hsh.check(i, Hsh.n - 2 * i, i)) {
            Hsh.print(i, Hsh.n - 2 * i, i);
        }
        if (Hsh.check(i - 1, Hsh.n - 2 * i + 1, i)) {
            Hsh.print(i - 1, Hsh.n - 2 * i + 1, i);
        }
        if (Hsh.check(Hsh.n - 2 * i, i, i)) {
            Hsh.print(Hsh.n - 2 * i, i, i);
        }
        if (Hsh.check(Hsh.n - 2 * i + 1, i - 1, i)) {
            Hsh.print(Hsh.n - 2 * i + 1, i - 1, i);
        }
    }
    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: 500kb

input:

93944386991110939443869921

output:

939443869911+10=939443869921

result:

ok single line: '939443869911+10=939443869921'

Test #2:

score: 5
Accepted
time: 0ms
memory: 504kb

input:

454431423351945476661

output:

45443142+33519=45476661

result:

ok single line: '45443142+33519=45476661'

Test #3:

score: 5
Accepted
time: 0ms
memory: 504kb

input:

807674775734008076747757340

output:

8076747757340+0=8076747757340

result:

ok single line: '8076747757340+0=8076747757340'

Test #4:

score: 5
Accepted
time: 0ms
memory: 504kb

input:

47936157175791479437362

output:

479361571+75791=479437362

result:

ok single line: '479361571+75791=479437362'

Test #5:

score: 5
Accepted
time: 0ms
memory: 504kb

input:

8684160719450790868416071945079

output:

868416071945079+0=868416071945079

result:

ok single line: '868416071945079+0=868416071945079'

Test #6:

score: 5
Accepted
time: 0ms
memory: 508kb

input:

3150325920082064131504079841

output:

31503259200+820641=31504079841

result:

ok single line: '31503259200+820641=31504079841'

Test #7:

score: 5
Accepted
time: 48ms
memory: 26804kb

input:

9261598869160335057970310229283612818845075445997339978957735823966059362624832990688056822195031820...

output:

9261598869160335057970310229283612818845075445997339978957735823966059362624832990688056822195031820...

result:

ok single line: '926159886916033505797031022928...3054231497478113058482456217163'

Test #8:

score: 5
Accepted
time: 51ms
memory: 27496kb

input:

4701609646464966471786112512122938863110668626139644802941307402470417596440427343650542031038908331...

output:

4701609646464966471786112512122938863110668626139644802941307402470417596440427343650542031038908331...

result:

ok single line: '470160964646496647178611251212...8748395060129898210762369495747'

Test #9:

score: 5
Accepted
time: 46ms
memory: 32180kb

input:

9257202799561473086244723527541134302291247300137775651258683390946286052100443441136004200934466749...

output:

9257202799561473086244723527541134302291247300137775651258683390946286052100443441136004200934466749...

result:

ok single line: '925720279956147308624472352754...2243909924739032590362234901192'

Test #10:

score: 5
Accepted
time: 54ms
memory: 29656kb

input:

4416728326936622856150699213135191910979789931946758505266833530473668185681946524100519868737557117...

output:

4416728326936622856150699213135191910979789931946758505266833530473668185681946524100519868737557117...

result:

ok single line: '441672832693662285615069921313...3111611421682233543698480114264'

Test #11:

score: 5
Accepted
time: 49ms
memory: 31604kb

input:

3061041362133228009344583160193669358685821190644364754039063887060686947993153784177860432362852231...

output:

3061041362133228009344583160193669358685821190644364754039063887060686947993153784177860432362852231...

result:

ok single line: '306104136213322800934458316019...4042293112332153562949434601781'

Test #12:

score: 5
Accepted
time: 55ms
memory: 31660kb

input:

8531603642906385747583399978283975747482545589702570907905311483331351132043885935451850547243462360...

output:

8531603642906385747583399978283975747482545589702570907905311483331351132043885935451850547243462360...

result:

ok single line: '853160364290638574758339997828...5180929300855954383525415798317'

Test #13:

score: 5
Accepted
time: 49ms
memory: 31908kb

input:

3334731073815946487356418721839719459473953466541212185094515699104064312397044785650155583747481091...

output:

3334731073815946487356418721839719459473953466541212185094515699104064312397044785650155583747481091...

result:

ok single line: '333473107381594648735641872183...2104466046161989376727619609117'

Test #14:

score: 5
Accepted
time: 54ms
memory: 30724kb

input:

7113181137342253409543193679407457232222929505170124047879622285985297849800487899060254257891240998...

output:

7113181137342253409543193679407457232222929505170124047879622285985297849800487899060254257891240998...

result:

ok single line: '711318113734225340954319367940...7499580501189814539270742795615'

Test #15:

score: 5
Accepted
time: 59ms
memory: 31560kb

input:

2226576415518523623432262365703901892218433052474981493103118406267304359951441730045611163295598279...

output:

2226576415518523623432262365703901892218433052474981493103118406267304359951441730045611163295598279...

result:

ok single line: '222657641551852362343226236570...1283546754745341452795514550351'

Test #16:

score: 5
Accepted
time: 72ms
memory: 31220kb

input:

7282380568017210841065149843225478309106222219195648724985194189592224139941051182898879219925651713...

output:

7282380568017210841065149843225478309106222219195648724985194189592224139941051182898879219925651713...

result:

ok single line: '728238056801721084106514984322...6665028468440209585025731431738'

Test #17:

score: 5
Accepted
time: 53ms
memory: 32304kb

input:

6172023021615818261278406139291452768117320772111777913293782100858187571870407831738505138788606992...

output:

6172023021615818261278406139291452768117320772111777913293782100858187571870407831738505138788606992...

result:

ok single line: '617202302161581826127840613929...9022854228506784321805225740782'

Test #18:

score: 5
Accepted
time: 13ms
memory: 19744kb

input:

1641729471229192950020661455158841378773007409709289573050186474289570718374236969060246403530844480...

output:

1641729471229192950020661455158841378773007409709289573050186474289570718374236969060246403530844480...

result:

ok single line: '164172947122919295002066145515...1428289195899821981683641721297'

Test #19:

score: 5
Accepted
time: 28ms
memory: 13988kb

input:

6878197288916471551222877849454599200431985721720556540869310866854759368074574456390764568703818252...

output:

6878197288916471551222877849454599200431985721720556540869310866854759368074574456390764568703818252...

result:

ok single line: '687819728891647155122287784945...4028111836067678989020741708082'

Test #20:

score: 5
Accepted
time: 24ms
memory: 16508kb

input:

1336335135465815186373041570173603326293570642638147764739718555949768772153761126675803325646928488...

output:

1336335135465815186373041570173603326293570642638147764739718555949768772153761126675803325646928488...

result:

ok single line: '133633513546581518637304157017...5916651705852916207264857823016'