Compilare: main.cpp: In function 'int main()': main.cpp:30:7: warning: this 'else' clause does not guard... [-Wmisleading-indentation] else ^~~~ main.cpp:31:24: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'else' l = i - dp[i]; r = i + dp[i]; ^