| Email |
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| Chat |
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| Dedicated account manager |
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| 24 hour Emergency Line |
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| On-demand conference calls with Dev Team |
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| no. Annual Submissions |
200000 |
200000 |
500000 |
200000 |
1000000 |
1000000 |
2500000 |
1000000 |
| no. Available programming languages |
80+ |
80+ |
80+ |
80+ |
80+ |
80+ |
80+ |
80+ |
| no. Checkers |
2 |
2 |
4 |
2 |
6 |
6 |
12 |
6 |
| White Label |
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| Sphere Engine Compilers API |
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| Sphere Engine Problems API |
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| JavaScript Compilers Widgets |
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| JavaScript Problems Widgets |
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| LMS integration |
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