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Daily Grind

Competitive programming · Daily challenges · Friendly rivalry

Friday July 10, 2026
Today's Challenges
Codeforces Constructive
1700

2201B · Recollect Numbers

1 / 12 solved Open →
LeetCode Graph Theory
Hard

1203 · Sort Items by Groups Respecting Dependencies

0 / 17 solved Open →
∫ Daily Integral
\(\int e^{3x} \, dx\)
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📐 Olympiad p00168 medium
Prove $\frac{1}{x^2+yz}+\frac{1}{y^2+xz}+\frac{1}{z^2+xy} \le \frac{1}{2} (\frac{1}{xy}+\frac{1}{yz}+\frac{1}{xz})$ for $x,y,z \in \mathbb{R}_{+}^*$.
9th grade View →
Today's Results
⚠ Penalty mode active: each wrong answer adds +30min to your effective solve time · ranking is by effective time, not clock time
Codeforces 1/12 solved
1 🏔️Tomas ✓ 0s
– ⭐Niklas pending
– Simeon pending
– 🌺Darian pending
– 🌊Louis pending
– 🌊Jonas pending
– 🎮Vasushmasu pending
– 😈KillerBunny pending
– Kent pending
– E-Mail pending
– Julius pending
– 🌛Mark pending
LeetCode 0/17 solved
– ⭐Niklas pending
– Simeon pending
– 🏔️Tomas pending
– 🌺Darian pending
– 🌊Louis pending
– 🌊Jonas pending
– 🎮Vasushmasu pending
– 🗡️Edea pending
– 😈KillerBunny pending
– Kent pending
– TschaiLatte pending
– JonasG pending
– Estelle pending
– E-Mail pending
– Julius pending
– 🌛Mark pending
– Xa4 pending
Today's Ranking
🥇
🏔️Tomas
Codeforces 5
5 pts today
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⭐Niklas
not submitted yet
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Simeon
not submitted yet
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🌺Darian
not submitted yet
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🌊Louis
not submitted yet
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🌊Jonas
not submitted yet
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🎮Vasushmasu
not submitted yet
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🗡️Edea
not submitted yet
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😈KillerBunny
not submitted yet
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Kent
not submitted yet
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TschaiLatte
not submitted yet
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JonasG
not submitted yet
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Estelle
not submitted yet
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E-Mail
not submitted yet
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Julius
not submitted yet
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🌛Mark
not submitted yet
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Xa4
not submitted yet
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🌅 Season 10 Full season →
🥇
🏔️Tomas
29 this week
🥈
😈KillerBunny
12 pts behind leader
17 this week
🥉
⭐Niklas
10 this week
4
🌺Darian
6 this week
5
🌊Jonas
5 this week
5
Simeon
5 this week
6
🌊Louis
2 this week
6
🎮Vasushmasu
2 this week
2 days left 🥇 🌅 skin + 🎁  ·  🥈 200