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View Compilation Error

0_0_33898367_22524.cpp: In function 'int main()':
0_0_33898367_22524.cpp:13:19: error: 'l' was not declared in this scope
    scanf("%d%d", &l[i], &r[i]);
                   ^
0_0_33898367_22524.cpp:13:26: error: 'r' was not declared in this scope
    scanf("%d%d", &l[i], &r[i]);
                          ^


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