[PWGLF] Add a trigger counter in hStrangeCorrelation.cxx

[kcui1]

No description provided.

[github-actions]

O2 linter results: ❌ 12 errors, ⚠️ 2 warnings, 🔕 0 disabled

[alibuild]

Error while checking build/O2Physics/code-check for 6849287 at 2026-08-24 17:57:

## sw/BUILD/O2Physics-code-check-latest/log
--
========== List of issues found ==========
++ echo 'Found 3 errors and 55 warnings.'
Found 3 errors and 55 warnings.
++ [[ 3 -gt 0 ]]
++ cat /sw/BUILD/ccda2d32e83c253c580448f698412ced7706c0f5/O2Physics-code-check/errors.txt
PWGLF/Tasks/Strangeness/hStrangeCorrelation.cxx:97:8: error: constructor does not initialize these fields: ccdb, pdgDB [cppcoreguidelines-pro-type-member-init,-warnings-as-errors]
PWGLF/Tasks/Strangeness/hStrangeCorrelation.cxx:769:5: error: Variable 'radius' with floating point type 'double' should not be used as a loop counter [clang-analyzer-security.FloatLoopCounter,-warnings-as-errors]
PWGLF/Tasks/Strangeness/hStrangeCorrelation.cxx:1145:5: error: Variable 'r' with floating point type 'double' should not be used as a loop counter [clang-analyzer-security.FloatLoopCounter,-warnings-as-errors]
++ [[ 55 -gt 0 ]]
++ cat /sw/BUILD/ccda2d32e83c253c580448f698412ced7706c0f5/O2Physics-code-check/warnings.txt
PWGLF/Tasks/Strangeness/hStrangeCorrelation.cxx:1575:75: warning: use designated initializer list to initialize 'PairLossPairKey' [modernize-use-designated-initializers]
PWGLF/Tasks/Strangeness/hStrangeCorrelation.cxx:3138:9: warning: the 'empty' method should be used to check for emptiness instead of comparing to an empty object [readability-container-size-empty]
PWGLF/Tasks/Strangeness/hStrangeCorrelation.cxx:3316:9: warning: the 'empty' method should be used to check for emptiness instead of 'size' [readability-container-size-empty]
PWGLF/Tasks/Strangeness/hStrangeCorrelation.cxx:3546:9: warning: the 'empty' method should be used to check for emptiness instead of 'size' [readability-container-size-empty]
PWGLF/Tasks/Strangeness/hStrangeCorrelation.cxx:3583:9: warning: the 'empty' method should be used to check for emptiness instead of 'size' [readability-container-size-empty]
PWGLF/Tasks/Strangeness/hStrangeCorrelation.cxx:3738:9: warning: the 'empty' method should be used to check for emptiness instead of 'size' [readability-container-size-empty]
PWGLF/Tasks/Strangeness/hStrangeCorrelation.cxx:3823:11: warning: the 'empty' method should be used to check for emptiness instead of 'size' [readability-container-size-empty]
PWGLF/Tasks/Strangeness/hStrangeCorrelation.cxx:3880:13: warning: the 'empty' method should be used to check for emptiness instead of 'size' [readability-container-size-empty]
PWGLF/Tasks/Strangeness/hStrangeCorrelation.cxx:3939:13: warning: the 'empty' method should be used to check for emptiness instead of 'size' [readability-container-size-empty]
PWGLF/Tasks/Strangeness/hStrangeCorrelation.cxx:3989:11: warning: the 'empty' method should be used to check for emptiness instead of 'size' [readability-container-size-empty]
PWGLF/Tasks/Strangeness/hStrangeCorrelation.cxx:4092:13: warning: the 'empty' method should be used to check for emptiness instead of 'size' [readability-container-size-empty]
PWGLF/Tasks/Strangeness/hStrangeCorrelation.cxx:4122:9: warning: the 'empty' method should be used to check for emptiness instead of 'size' [readability-container-size-empty]
PWGLF/Tasks/Strangeness/hStrangeCorrelation.cxx:4349:15: warning: boolean expression can be simplified by DeMorgan's theorem [readability-simplify-boolean-expr]
PWGLF/Tasks/Strangeness/hStrangeCorrelation.cxx:4351:41: warning: use 'contains' to check for membership [readability-container-contains]
PWGLF/Tasks/Strangeness/hStrangeCorrelation.cxx:4388:36: warning: use 'contains' to check for membership [readability-container-contains]
PWGLF/Tasks/Strangeness/hStrangeCorrelation.cxx:4440:15: warning: boolean expression can be simplified by DeMorgan's theorem [readability-simplify-boolean-expr]
PWGLF/Tasks/Strangeness/hStrangeCorrelation.cxx:4442:30: warning: redundant explicit casting to the same type 'int64_t' (aka 'long') as the sub-expression, remove this casting [readability-redundant-casting]
PWGLF/Tasks/Strangeness/hStrangeCorrelation.cxx:4456:26: warning: redundant explicit casting to the same type 'int64_t' (aka 'long') as the sub-expression, remove this casting [readability-redundant-casting]
PWGLF/Tasks/Strangeness/hStrangeCorrelation.cxx:4467:28: warning: redundant explicit casting to the same type 'int64_t' (aka 'long') as the sub-expression, remove this casting [readability-redundant-casting]
PWGLF/Tasks/Strangeness/hStrangeCorrelation.cxx:4541:13: warning: the 'empty' method should be used to check for emptiness instead of 'size' [readability-container-size-empty]
PWGLF/Tasks/Strangeness/hStrangeCorrelation.cxx:4545:31: warning: the 'empty' method should be used to check for emptiness instead of 'size' [readability-container-size-empty]
PWGLF/Tasks/Strangeness/hStrangeCorrelation.cxx:4659:26: warning: redundant explicit casting to the same type 'int64_t' (aka 'long') as the sub-expression, remove this casting [readability-redundant-casting]
PWGLF/Tasks/Strangeness/hStrangeCorrelation.cxx:4660:30: warning: redundant explicit casting to the same type 'int64_t' (aka 'long') as the sub-expression, remove this casting [readability-redundant-casting]
PWGLF/Tasks/Strangeness/hStrangeCorrelation.cxx:4661:30: warning: redundant explicit casting to the same type 'int64_t' (aka 'long') as the sub-expression, remove this casting [readability-redundant-casting]
PWGLF/Tasks/Strangeness/hStrangeCorrelation.cxx:4684:32: warning: use 'contains' to check for membership [readability-container-contains]
PWGLF/Tasks/Strangeness/hStrangeCorrelation.cxx:4737:61: warning: use designated initializer list to initialize 'PairLossFinalRecord' [modernize-use-designated-initializers]
PWGLF/Tasks/Strangeness/hStrangeCorrelation.cxx:4738:32: warning: use designated initializer list to initialize 'PairLossPairKey' [modernize-use-designated-initializers]
PWGLF/Tasks/Strangeness/hStrangeCorrelation.cxx:4853:26: warning: redundant explicit casting to the same type 'int64_t' (aka 'long') as the sub-expression, remove this casting [readability-redundant-casting]
PWGLF/Tasks/Strangeness/hStrangeCorrelation.cxx:4867:11: warning: redundant explicit casting to the same type 'int64_t' (aka 'long') as the sub-expression, remove this casting [readability-redundant-casting]
PWGLF/Tasks/Strangeness/hStrangeCorrelation.cxx:4901:26: warning: redundant explicit casting to the same type 'int64_t' (aka 'long') as the sub-expression, remove this casting [readability-redundant-casting]
PWGLF/Tasks/Strangeness/hStrangeCorrelation.cxx:4949:26: warning: redundant explicit casting to the same type 'int64_t' (aka 'long') as the sub-expression, remove this casting [readability-redundant-casting]
PWGLF/Tasks/Strangeness/hStrangeCorrelation.cxx:4950:30: warning: redundant explicit casting to the same type 'int64_t' (aka 'long') as the sub-expression, remove this casting [readability-redundant-casting]
PWGLF/Tasks/Strangeness/hStrangeCorrelation.cxx:4951:30: warning: redundant explicit casting to the same type 'int64_t' (aka 'long') as the sub-expression, remove this casting [readability-redundant-casting]
PWGLF/Tasks/Strangeness/hStrangeCorrelation.cxx:5005:28: warning: redundant explicit casting to the same type 'int64_t' (aka 'long') as the sub-expression, remove this casting [readability-redundant-casting]
PWGLF/Tasks/Strangeness/hStrangeCorrelation.cxx:5018:26: warning: redundant explicit casting to the same type 'int64_t' (aka 'long') as the sub-expression, remove this casting [readability-redundant-casting]
PWGLF/Tasks/Strangeness/hStrangeCorrelation.cxx:5029:28: warning: redundant explicit casting to the same type 'int64_t' (aka 'long') as the sub-expression, remove this casting [readability-redundant-casting]
PWGLF/Tasks/Strangeness/hStrangeCorrelation.cxx:5525:34: warning: use 'contains' to check for membership [readability-container-contains]
[0 more errors; see full log]

Full log here.