sarpe.cpp: In function 'void fill(int, int, sarpe*, int&)': sarpe.cpp:32: warning: suggest explicit braces to avoid ambiguous 'else' sarpe.cpp: In function 'int main()': sarpe.cpp:54: warning: suggest parentheses around '+' inside '>>' sarpe.cpp:62: warning: extended initializer lists only available with -std=c++0x or -std=gnu++0x sarpe.cpp:62: warning: extended initializer lists only available with -std=c++0x or -std=gnu++0x sarpe.cpp:73: warning: comparison between signed and unsigned integer expressions sarpe.cpp:76: warning: unused variable 'nx' sarpe.cpp:76: warning: unused variable 'ny' sarpe.cpp:83: warning: comparison between signed and unsigned integer expressions