[PWGLF] Change the type of the efficiency histogram in hStrangeCorrelation.cxx

[gengjiabin12]

No description provided.

[github-actions]

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

[alibuild]

Error while checking build/O2Physics/code-check for d3f0128 at 2026-08-27 16:16:

## sw/BUILD/O2Physics-code-check-latest/log
--
========== List of issues found ==========
++ echo 'Found 4 errors and 57 warnings.'
Found 4 errors and 57 warnings.
++ [[ 4 -gt 0 ]]
++ cat /sw/BUILD/ecf499eb59de34c98d60df11d10e5376e5ad8a38/O2Physics-code-check/errors.txt
PWGLF/Tasks/Strangeness/hStrangeCorrelation.cxx:98:8: error: constructor does not initialize these fields: ccdb, pdgDB [cppcoreguidelines-pro-type-member-init,-warnings-as-errors]
PWGLF/Tasks/Strangeness/hStrangeCorrelation.cxx:817:5: 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:1193:5: error: Variable 'r' 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:5210:9: error: uninitialized record type: 'triggerStageFills' [cppcoreguidelines-pro-type-member-init,-warnings-as-errors]
++ [[ 57 -gt 0 ]]
++ cat /sw/BUILD/ecf499eb59de34c98d60df11d10e5376e5ad8a38/O2Physics-code-check/warnings.txt
PWGLF/Tasks/Strangeness/hStrangeCorrelation.cxx:1623:75: warning: use designated initializer list to initialize 'PairLossPairKey' [modernize-use-designated-initializers]
PWGLF/Tasks/Strangeness/hStrangeCorrelation.cxx:3200:9: 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:3378:9: warning: the 'empty' method should be used to check for emptiness instead of 'size' [readability-container-size-empty]
PWGLF/Tasks/Strangeness/hStrangeCorrelation.cxx:3620:9: warning: the 'empty' method should be used to check for emptiness instead of 'size' [readability-container-size-empty]
PWGLF/Tasks/Strangeness/hStrangeCorrelation.cxx:3657:9: warning: the 'empty' method should be used to check for emptiness instead of 'size' [readability-container-size-empty]
PWGLF/Tasks/Strangeness/hStrangeCorrelation.cxx:3812:9: warning: the 'empty' method should be used to check for emptiness instead of 'size' [readability-container-size-empty]
PWGLF/Tasks/Strangeness/hStrangeCorrelation.cxx:3897:11: warning: the 'empty' method should be used to check for emptiness instead of 'size' [readability-container-size-empty]
PWGLF/Tasks/Strangeness/hStrangeCorrelation.cxx:3954:13: warning: the 'empty' method should be used to check for emptiness instead of 'size' [readability-container-size-empty]
PWGLF/Tasks/Strangeness/hStrangeCorrelation.cxx:4013:13: warning: the 'empty' method should be used to check for emptiness instead of 'size' [readability-container-size-empty]
PWGLF/Tasks/Strangeness/hStrangeCorrelation.cxx:4063:11: warning: the 'empty' method should be used to check for emptiness instead of 'size' [readability-container-size-empty]
PWGLF/Tasks/Strangeness/hStrangeCorrelation.cxx:4166:13: warning: the 'empty' method should be used to check for emptiness instead of 'size' [readability-container-size-empty]
PWGLF/Tasks/Strangeness/hStrangeCorrelation.cxx:4196:9: warning: the 'empty' method should be used to check for emptiness instead of 'size' [readability-container-size-empty]
PWGLF/Tasks/Strangeness/hStrangeCorrelation.cxx:4429:15: warning: boolean expression can be simplified by DeMorgan's theorem [readability-simplify-boolean-expr]
PWGLF/Tasks/Strangeness/hStrangeCorrelation.cxx:4431:41: warning: use 'contains' to check for membership [readability-container-contains]
PWGLF/Tasks/Strangeness/hStrangeCorrelation.cxx:4468:36: warning: use 'contains' to check for membership [readability-container-contains]
PWGLF/Tasks/Strangeness/hStrangeCorrelation.cxx:4520:15: warning: boolean expression can be simplified by DeMorgan's theorem [readability-simplify-boolean-expr]
PWGLF/Tasks/Strangeness/hStrangeCorrelation.cxx:4522:30: 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:4536:26: 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:4547:28: 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:4621:13: warning: the 'empty' method should be used to check for emptiness instead of 'size' [readability-container-size-empty]
PWGLF/Tasks/Strangeness/hStrangeCorrelation.cxx:4625:31: warning: the 'empty' method should be used to check for emptiness instead of 'size' [readability-container-size-empty]
PWGLF/Tasks/Strangeness/hStrangeCorrelation.cxx:4739:26: 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:4740:30: 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:4741:30: 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:4764:32: warning: use 'contains' to check for membership [readability-container-contains]
PWGLF/Tasks/Strangeness/hStrangeCorrelation.cxx:4817:61: warning: use designated initializer list to initialize 'PairLossFinalRecord' [modernize-use-designated-initializers]
PWGLF/Tasks/Strangeness/hStrangeCorrelation.cxx:4818:32: warning: use designated initializer list to initialize 'PairLossPairKey' [modernize-use-designated-initializers]
PWGLF/Tasks/Strangeness/hStrangeCorrelation.cxx:4934:26: 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:4948:11: 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:4982:26: 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:4999:15: warning: use auto when initializing with a cast to avoid duplicating the type name [modernize-use-auto]
PWGLF/Tasks/Strangeness/hStrangeCorrelation.cxx:4999:42: 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:5046:28: 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:5047:32: 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:5048:32: 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:5106:28: warning: redundant explicit casting to the same type 'int64_t' (aka 'long') as the sub-expression, remove this casting [readability-redundant-casting]
[0 more errors; see full log]

Full log here.