View Compilation Error

0_0_10207579_15911.cpp: In function `int main()':
0_0_10207579_15911.cpp:4: error: `int64' undeclared (first use this function)
0_0_10207579_15911.cpp:4: error: (Each undeclared identifier is reported only once for each function it appears in.)
0_0_10207579_15911.cpp:4: error: expected `;' before "value"
0_0_10207579_15911.cpp:5: error: `scanf' undeclared (first use this function)
0_0_10207579_15911.cpp:8: error: `value' undeclared (first use this function)
0_0_10207579_15911.cpp:15: error: `printf' undeclared (first use this function)