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#include <iostream>
using namespace std;
 
int main() {printf("inserisci il primo numero");
scanf("%f",&N);
printf("inserisci il secondo numero");
scanf("%f",&N2);
somma=N+N2;
printf("la somma totale è %d\n",somma);
system ("pause")
	// your code goes here
	return 0;
}

prog.cpp: In function ‘int main()’:
prog.cpp:5:13: error: ‘N’ was not declared in this scope
 scanf("%f",&N);
             ^
prog.cpp:7:13: error: ‘N2’ was not declared in this scope
 scanf("%f",&N2);
             ^~
prog.cpp:8:1: error: ‘somma’ was not declared in this scope
 somma=N+N2;
 ^~~~~
prog.cpp:12:2: error: expected ‘;’ before ‘return’
  return 0;
  ^~~~~~

Standard output is empty