✨ Introducing Live 1v1 Coding Battles

CodeMortem is the new way
to compete and learn.

Real-time 1v1 algorithmic battles and interactive learning paths built with
speed, precision, and developer-first design.

Start Competing
swayam_v320
18:42
tourist180
Problems
Q1+100
Q2+200
Q3+300
Q4+400
Q5+500
Q6+600
Q7+700
solution.cpp
1#include <bits/stdc++.h>
2using namespace std;
3 
4int main() {
5 ios::sync_with_stdio(0);
6 cin.tie(0);
7 
8 int n, k;
9 cin >> n >> k;
10 vector<int> a(n);
11 for (auto& x : a) cin >> x;
12 
13 sort(a.begin(), a.end());
14 long long ans = 0;
15 for (int i = 0; i < k; i++)
16 ans += a[i];
17 cout << ans << '\n';
18 return 0;
19}
20
OPPONENT
tourist
2847
Q1 solved
YOU
swayam_v
1847
Q1 solved
VERDICT
✓ Accepted
0ms · 4KB

TRUSTED BY COMPETITIVE PROGRAMMERS TRAINING FOR

Pricing

Simple pricing for everyone.

Choose an affordable plan that's packed with the best features for mastering DSA, competing in real-time, and tracking your progression.

Quarterly2 MONTHS FREE ✨

Free

Everything you need to get started competing

₹0 / forever

Get Started


  • All module lessons
  • Module coding challenges
  • Completion badges
  • Ranked 1v1 matches
  • Solo practice mode
  • Global leaderboard access

Premium

For serious competitive programmers who want more

₹1,200 / 3 months

Subscribe


  • Everything in Free
  • Practice Bank (8+ bonus problems/module)
  • Full editorials + C++ & Python solutions
  • Post-module timed practice contests
  • Premium badge on leaderboard
  • Priority judge execution
A
Aditya Raj
@aditya_raj
1847

Went from 1300 to 1700 in 3 weeks. The 1v1 pressure is unlike any other practice method.

S
Saumya K.
@saumya_k
1623

HLD finally clicked after 2 sessions. The interactive visualizers are genuinely helpful.

P
Priya D.
@priyanka_d
1941

My CF rating jumped from Expert to CM after 1 month on CodeMortem. The 1v1 format works.

H
Harsh V.
@harsh_v
1582

1v1s made my actual Codeforces rounds feel manageable. Q3 solves improved massively.

R
Rohan M.
@rohan_m
2103

Judge0 execution is blazing fast. No more TLE surprises from a slow online judge.

I
Ishaan P.
@ishaan_p
1389

Perfect for a student training for ICPC. The structured learning modules are gold.

N
Nisha R.
@nisha_r
1765

Competing against real people at my level is so much better than isolated LeetCode grind.

D
Dev S.
@dev_s
1503

The rating system actually maps to Codeforces. First platform that feels honest.

A
Aditya Raj
@aditya_raj
1847

Went from 1300 to 1700 in 3 weeks. The 1v1 pressure is unlike any other practice method.

S
Saumya K.
@saumya_k
1623

HLD finally clicked after 2 sessions. The interactive visualizers are genuinely helpful.

P
Priya D.
@priyanka_d
1941

My CF rating jumped from Expert to CM after 1 month on CodeMortem. The 1v1 format works.

H
Harsh V.
@harsh_v
1582

1v1s made my actual Codeforces rounds feel manageable. Q3 solves improved massively.

R
Rohan M.
@rohan_m
2103

Judge0 execution is blazing fast. No more TLE surprises from a slow online judge.

I
Ishaan P.
@ishaan_p
1389

Perfect for a student training for ICPC. The structured learning modules are gold.

N
Nisha R.
@nisha_r
1765

Competing against real people at my level is so much better than isolated LeetCode grind.

D
Dev S.
@dev_s
1503

The rating system actually maps to Codeforces. First platform that feels honest.

P
Priya D.
@priyanka_d
1941

My CF rating jumped from Expert to CM after 1 month on CodeMortem. The 1v1 format works.

H
Harsh V.
@harsh_v
1582

1v1s made my actual Codeforces rounds feel manageable. Q3 solves improved massively.

R
Rohan M.
@rohan_m
2103

Judge0 execution is blazing fast. No more TLE surprises from a slow online judge.

I
Ishaan P.
@ishaan_p
1389

Perfect for a student training for ICPC. The structured learning modules are gold.

N
Nisha R.
@nisha_r
1765

Competing against real people at my level is so much better than isolated LeetCode grind.

D
Dev S.
@dev_s
1503

The rating system actually maps to Codeforces. First platform that feels honest.

A
Arjun B.
@arjun_b
2248

Segment tree module is the best resource I've seen anywhere. Finished it in 2 days.

S
Sneha T.
@sneha_t
1677

Post-match editorials are what set CodeMortem apart. I learn more from losses.

P
Priya D.
@priyanka_d
1941

My CF rating jumped from Expert to CM after 1 month on CodeMortem. The 1v1 format works.

H
Harsh V.
@harsh_v
1582

1v1s made my actual Codeforces rounds feel manageable. Q3 solves improved massively.

R
Rohan M.
@rohan_m
2103

Judge0 execution is blazing fast. No more TLE surprises from a slow online judge.

I
Ishaan P.
@ishaan_p
1389

Perfect for a student training for ICPC. The structured learning modules are gold.

N
Nisha R.
@nisha_r
1765

Competing against real people at my level is so much better than isolated LeetCode grind.

D
Dev S.
@dev_s
1503

The rating system actually maps to Codeforces. First platform that feels honest.

A
Arjun B.
@arjun_b
2248

Segment tree module is the best resource I've seen anywhere. Finished it in 2 days.

S
Sneha T.
@sneha_t
1677

Post-match editorials are what set CodeMortem apart. I learn more from losses.

R
Rohan M.
@rohan_m
2103

Judge0 execution is blazing fast. No more TLE surprises from a slow online judge.

I
Ishaan P.
@ishaan_p
1389

Perfect for a student training for ICPC. The structured learning modules are gold.

N
Nisha R.
@nisha_r
1765

Competing against real people at my level is so much better than isolated LeetCode grind.

D
Dev S.
@dev_s
1503

The rating system actually maps to Codeforces. First platform that feels honest.

A
Arjun B.
@arjun_b
2248

Segment tree module is the best resource I've seen anywhere. Finished it in 2 days.

S
Sneha T.
@sneha_t
1677

Post-match editorials are what set CodeMortem apart. I learn more from losses.

K
Karan G.
@karan_g
1432

Finally a platform that treats competitive programming like a sport, not homework.

M
Meera J.
@meera_j
1910

Codeforces integration is seamless. My ratings on both platforms now correlate.

R
Rohan M.
@rohan_m
2103

Judge0 execution is blazing fast. No more TLE surprises from a slow online judge.

I
Ishaan P.
@ishaan_p
1389

Perfect for a student training for ICPC. The structured learning modules are gold.

N
Nisha R.
@nisha_r
1765

Competing against real people at my level is so much better than isolated LeetCode grind.

D
Dev S.
@dev_s
1503

The rating system actually maps to Codeforces. First platform that feels honest.

A
Arjun B.
@arjun_b
2248

Segment tree module is the best resource I've seen anywhere. Finished it in 2 days.

S
Sneha T.
@sneha_t
1677

Post-match editorials are what set CodeMortem apart. I learn more from losses.

K
Karan G.
@karan_g
1432

Finally a platform that treats competitive programming like a sport, not homework.

M
Meera J.
@meera_j
1910

Codeforces integration is seamless. My ratings on both platforms now correlate.

N
Nisha R.
@nisha_r
1765

Competing against real people at my level is so much better than isolated LeetCode grind.

D
Dev S.
@dev_s
1503

The rating system actually maps to Codeforces. First platform that feels honest.

A
Arjun B.
@arjun_b
2248

Segment tree module is the best resource I've seen anywhere. Finished it in 2 days.

S
Sneha T.
@sneha_t
1677

Post-match editorials are what set CodeMortem apart. I learn more from losses.

K
Karan G.
@karan_g
1432

Finally a platform that treats competitive programming like a sport, not homework.

M
Meera J.
@meera_j
1910

Codeforces integration is seamless. My ratings on both platforms now correlate.

A
Aditya Raj
@aditya_raj
1847

Went from 1300 to 1700 in 3 weeks. The 1v1 pressure is unlike any other practice method.

S
Saumya K.
@saumya_k
1623

HLD finally clicked after 2 sessions. The interactive visualizers are genuinely helpful.

N
Nisha R.
@nisha_r
1765

Competing against real people at my level is so much better than isolated LeetCode grind.

D
Dev S.
@dev_s
1503

The rating system actually maps to Codeforces. First platform that feels honest.

A
Arjun B.
@arjun_b
2248

Segment tree module is the best resource I've seen anywhere. Finished it in 2 days.

S
Sneha T.
@sneha_t
1677

Post-match editorials are what set CodeMortem apart. I learn more from losses.

K
Karan G.
@karan_g
1432

Finally a platform that treats competitive programming like a sport, not homework.

M
Meera J.
@meera_j
1910

Codeforces integration is seamless. My ratings on both platforms now correlate.

A
Aditya Raj
@aditya_raj
1847

Went from 1300 to 1700 in 3 weeks. The 1v1 pressure is unlike any other practice method.

S
Saumya K.
@saumya_k
1623

HLD finally clicked after 2 sessions. The interactive visualizers are genuinely helpful.

A
Arjun B.
@arjun_b
2248

Segment tree module is the best resource I've seen anywhere. Finished it in 2 days.

S
Sneha T.
@sneha_t
1677

Post-match editorials are what set CodeMortem apart. I learn more from losses.

K
Karan G.
@karan_g
1432

Finally a platform that treats competitive programming like a sport, not homework.

M
Meera J.
@meera_j
1910

Codeforces integration is seamless. My ratings on both platforms now correlate.

A
Aditya Raj
@aditya_raj
1847

Went from 1300 to 1700 in 3 weeks. The 1v1 pressure is unlike any other practice method.

S
Saumya K.
@saumya_k
1623

HLD finally clicked after 2 sessions. The interactive visualizers are genuinely helpful.

P
Priya D.
@priyanka_d
1941

My CF rating jumped from Expert to CM after 1 month on CodeMortem. The 1v1 format works.

H
Harsh V.
@harsh_v
1582

1v1s made my actual Codeforces rounds feel manageable. Q3 solves improved massively.

A
Arjun B.
@arjun_b
2248

Segment tree module is the best resource I've seen anywhere. Finished it in 2 days.

S
Sneha T.
@sneha_t
1677

Post-match editorials are what set CodeMortem apart. I learn more from losses.

K
Karan G.
@karan_g
1432

Finally a platform that treats competitive programming like a sport, not homework.

M
Meera J.
@meera_j
1910

Codeforces integration is seamless. My ratings on both platforms now correlate.

A
Aditya Raj
@aditya_raj
1847

Went from 1300 to 1700 in 3 weeks. The 1v1 pressure is unlike any other practice method.

S
Saumya K.
@saumya_k
1623

HLD finally clicked after 2 sessions. The interactive visualizers are genuinely helpful.

P
Priya D.
@priyanka_d
1941

My CF rating jumped from Expert to CM after 1 month on CodeMortem. The 1v1 format works.

H
Harsh V.
@harsh_v
1582

1v1s made my actual Codeforces rounds feel manageable. Q3 solves improved massively.

Stop solving problems alone.

Find your first match in under 60 seconds. No credit card required.

Get Started