diff --git a/src/judge/contributer/contributer.controller.ts b/src/judge/contributer/contributer.controller.ts
index 4c8fa77..b8a361e 100644
--- a/src/judge/contributer/contributer.controller.ts
+++ b/src/judge/contributer/contributer.controller.ts
@@ -17,7 +17,7 @@ import { RoleGuard } from 'app/guard';
 import { UpdateProblmeDto } from 'app/judge/contributer/dto/update-problem.dto';
 import { ContributerDocs } from './contributer.docs';
 import { ContributerService } from './contributer.service';
-import { UpdateExampleDto } from './dto';
+import { CreateExampleDto, UpdateExampleDto } from './dto';
 import { ContributerProblemGuard } from './decorator/contributer-problem.guard';
 
 @Controller()
@@ -81,8 +81,9 @@ export class ContributerController {
   createExample(
     @GetUser('id') uid: string,
     @Param('pid', ParseIntPipe) pid: number,
+    @Body() dto: CreateExampleDto,
   ) {
-    return this.contributerService.createExmaple(uid, pid);
+    return this.contributerService.createExmaple(uid, pid, dto);
   }
 
   @Patch('problems/:pid/examples/:eid')
diff --git a/src/judge/contributer/contributer.service.spec.ts b/src/judge/contributer/contributer.service.spec.ts
index 2bc0f86..51bbc2a 100644
--- a/src/judge/contributer/contributer.service.spec.ts
+++ b/src/judge/contributer/contributer.service.spec.ts
@@ -59,7 +59,11 @@ describe('ContributerService', () => {
     });
     it('should create new example of problem1', async () => {
       // Create example of problem1
-      example1 = await service.createExmaple(user1.id, problem1.id);
+      example1 = await service.createExmaple(user1.id, problem1.id, {
+        input: '2 3 4',
+        output: '5 6 7',
+        isPublic: true,
+      });
       expect(example1).toBeTruthy();
     });
   });
diff --git a/src/judge/contributer/contributer.service.ts b/src/judge/contributer/contributer.service.ts
index 4d3e6cf..d399aec 100644
--- a/src/judge/contributer/contributer.service.ts
+++ b/src/judge/contributer/contributer.service.ts
@@ -2,7 +2,7 @@ import { ForbiddenException, Injectable } from '@nestjs/common';
 import { PaginateObject } from 'app/decorator';
 import { UpdateProblmeDto } from 'app/judge/contributer/dto/update-problem.dto';
 import { PrismaService } from 'app/prisma/prisma.service';
-import { UpdateExampleDto } from './dto';
+import { CreateExampleDto, UpdateExampleDto } from './dto';
 import { AwsSqsService } from 'aws-sqs/aws-sqs';
 
 @Injectable()
@@ -49,13 +49,6 @@ export class ContributerService {
   }
 
   async updateProblem(uid: string, pid: number, dto: UpdateProblmeDto) {
-    const findProblem = await this.prisma.problem.findUnique({
-      where: {
-        id: pid,
-        contributerId: uid,
-      },
-    });
-
     // If time limit is lower than 0
     if (dto?.timeLimit && dto.timeLimit < 0) {
       dto.timeLimit = 5;
@@ -98,9 +91,10 @@ export class ContributerService {
     return updatedProblem;
   }
 
-  async createExmaple(uid: string, pid: number) {
+  async createExmaple(uid: string, pid: number, dto: CreateExampleDto) {
     return this.prisma.problemExample.create({
       data: {
+        ...dto,
         problemId: pid,
       },
     });
@@ -112,7 +106,7 @@ export class ContributerService {
     eid: number,
     dto: UpdateExampleDto,
   ) {
-    const findExample = await this.prisma.problemExample.findUnique({
+    const previousExample = await this.prisma.problemExample.findUnique({
       where: {
         id: eid,
         problemId: pid,
@@ -122,15 +116,21 @@ export class ContributerService {
       },
     });
 
-    if (!findExample) {
+    if (!previousExample) {
       throw new ForbiddenException('FORBIDDEN_REQUEST');
     }
 
-    // Send task to client
-    await this.sqs.sendTask({
-      id: pid,
-      message: 'RE_CORRECTION',
-    });
+    // Only trigger re-correction if it input or out-put modified
+    if (
+      dto.input !== previousExample.input ||
+      dto.output !== previousExample.output
+    ) {
+      // Send task to client
+      await this.sqs.sendTask({
+        id: pid,
+        message: 'RE_CORRECTION',
+      });
+    }
 
     return this.prisma.problemExample.update({
       where: {
diff --git a/src/judge/contributer/dto/create-example.dto.ts b/src/judge/contributer/dto/create-example.dto.ts
new file mode 100644
index 0000000..75d001f
--- /dev/null
+++ b/src/judge/contributer/dto/create-example.dto.ts
@@ -0,0 +1,20 @@
+import { OmitType } from '@nestjs/swagger';
+import { IsString, IsOptional, IsBoolean } from 'class-validator';
+import { ProblemExampleDomain } from 'domains';
+
+export class CreateExampleDto extends OmitType(ProblemExampleDomain, [
+  'id',
+  'problemId',
+]) {
+  @IsString()
+  @IsOptional()
+  input: string;
+
+  @IsString()
+  @IsOptional()
+  output: string;
+
+  @IsBoolean()
+  @IsOptional()
+  isPublic: boolean;
+}
diff --git a/src/judge/contributer/dto/index.ts b/src/judge/contributer/dto/index.ts
index 7f3730d..8ba1e82 100644
--- a/src/judge/contributer/dto/index.ts
+++ b/src/judge/contributer/dto/index.ts
@@ -1,2 +1,3 @@
 export * from './update-problem.dto';
 export * from './update-example.dto';
+export * from './create-example.dto';
diff --git a/src/judge/contributer/dto/update-example.dto.ts b/src/judge/contributer/dto/update-example.dto.ts
index 11bf305..26ab14b 100644
--- a/src/judge/contributer/dto/update-example.dto.ts
+++ b/src/judge/contributer/dto/update-example.dto.ts
@@ -1,4 +1,4 @@
-import { ApiProperty, OmitType } from '@nestjs/swagger';
+import { OmitType } from '@nestjs/swagger';
 import { IsBoolean, IsOptional, IsString } from 'class-validator';
 import { ProblemExampleDomain } from 'domains';