Compilare: main.cpp:3:21: warning: suggest parentheses around '+' inside '<<' [-Wparentheses] #define MAX 1 << 20 + 1 ~~~^~~ main.cpp:5:26: note: in expansion of macro 'MAX' pair< unsigned, int > v[ MAX ]; ^~~ main.cpp:3:21: warning: suggest parentheses around '+' inside '<<' [-Wparentheses] #define MAX 1 << 20 + 1 ~~~^~~ main.cpp:6:13: note: in expansion of macro 'MAX' unsigned a[ MAX ], f[ MAX ]; ^~~ main.cpp:3:21: warning: suggest parentheses around '+' inside '<<' [-Wparentheses] #define MAX 1 << 20 + 1 ~~~^~~ main.cpp:6:23: note: in expansion of macro 'MAX' unsigned a[ MAX ], f[ MAX ]; ^~~ main.cpp: In function 'long long int caca(int)': main.cpp:14:25: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while( pipi <= i && cate == limita ){ ~~~~~^~~~ main.cpp:14:38: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while( pipi <= i && cate == limita ){ ~~~~~^~~~~~~~~ main.cpp: In function 'int main()': main.cpp:33:42: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf( fin, "%d%d%d", &n, &st, &dr ); ^ main.cpp:35:43: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf( fin, "%u", &v[ i ].first ); ^